EP0079492A1 - Sound-proofing device - Google Patents
Sound-proofing device Download PDFInfo
- Publication number
- EP0079492A1 EP0079492A1 EP82109861A EP82109861A EP0079492A1 EP 0079492 A1 EP0079492 A1 EP 0079492A1 EP 82109861 A EP82109861 A EP 82109861A EP 82109861 A EP82109861 A EP 82109861A EP 0079492 A1 EP0079492 A1 EP 0079492A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- openings
- soundproofing device
- cover
- opening
- center
- 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
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 description 2
- 101150028074 2 gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
-
- 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
- E01F8/0052—Grate-style, e.g. as wall facing
-
- 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
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
Definitions
- the invention relates to a soundproofing device for soundproof walls on streets or other noise sources, such as in particular for windows and doors on buildings.
- Such soundproofing devices are known from DE-OS 29 16 478 consisting of at least two rows of cover plates, in particular strips, which are arranged at a distance from one another and each have openings offset from one another.
- DE-OS 14 34 235 it is also known to arrange curved roller shutter slats staggered one behind the other in double roller shutters in order to achieve a covering of the roller shutter slits and thus a certain level of noise insulation, but without striving for air passage.
- the object of the invention is now to achieve more optimal noise insulation with sufficient ventilation properties and, moreover, to enable light transmission, the sound being intended to be reflected back through the inlet openings.
- the soundproofing device consisting of at least two rows of cover plates, ins Special strips, which are arranged at a distance from one another and each have openings offset from one another, are characterized in that the openings at undercuts of their opening edges are each covered by spaced-apart curved parts centered on the openings, the center - focal point - at least the rear first curvature parts lying in particular in or above the first center of the opening.
- center points - focal points - of all successive curvature parts which have a circular or elliptical shape, in particular can be located in or above the respective center of the opening.
- staggered cover strips with a double-T shape in cross-section are preferably used with appropriately arranged channel curvatures which interlock in such a way that a mutual slot cover with intervening opening slots is created.
- the openings can also be designed as perforations, followed by circular arc-shaped plate or ring channel arches with intermediate openings.
- cover strips when using cover strips, the same can be formed by means of pins or to form roller shutters Grip the rollers in the lateral roller shutter guides, which are angled and offset at the feed end. or the cover strips can be pulled down like curtains.
- the first exemplary embodiment according to FIG. 1 shows a soundproofing device in which two rows of cover strips 1 and 2 are provided, which are staggered at a distance from one another.
- the two rows of cover strips 1 and 2 have a double-T shape in cross-section, with / the first cover strip row 1 flat surfaces 3 to the outside and intermediate openings in the form of wider openings with slits 4, at the undercuts 5 / each of which arcuate channel arches 6 are provided whose center M 1 lies in the respective opening center of the slits 4.
- the circular-arched channel curvatures 6 have a corresponding edge distance from the undercuts 5 on both sides to form further opening slots 7, preferably half the width of the first opening slots 4, since here each slot 4 is followed by two side slots 7 in order to allow approximately the same air passage.
- the second opening slot 7 is again followed laterally by circular arcuate channel curvatures 8, which are at the undercuts 9 of the first Channel curvatures 6 open further opening slots 10, which in turn are followed by corresponding channel curvatures 11 for covering, as well as flat surfaces 12 as an inner closure.
- FIG. 7 a roller shutter version is shown, the cover strips 1 and 2 engaging in horizontal arrangement by means of pins or rollers 13, 14 in side roller shutter guides 15, 16, which are offset from one another at the intake end, as can be seen from FIG. 7 bend to allow the interlocking T-shaped cover strips 1 and 2 to pivot apart when winding up as separate double roller shutters.
- FIG. 8 a curtain version is shown, the cover strips 1 and 2 running in a hanging arrangement by means of pins 17, 18 in ceiling guides 19, 20 and having to be withdrawn in the same or in opposite directions.
- slits 4a, 7a and 10a are provided which are enlarged compared to FIG. 1, wherein M 1 can also move further outwards, corresponding to M 1 'or M 1 ".
- FIG. 10 corresponds to that shown in FIG. 1 only that instead of the circular arches 6, 8 and 11 here elliptical arches 6a, 8a and 11a are provided with corresponding focal points.
- a soundproofing device is based on cover plates 21 and 22 which are arranged at a distance from one another.
- the first cover plate 21 is with her Flat surfaces 23 are directed outwards and have openings in the form of perforations 24, at the undercuts 25 of which circular arc-shaped plate curvatures 26 are provided, the center of the circle M 1 of which lies in the respective opening center of the perforations 24.
- the circular arc-shaped plate curvature 26 has an edge distance from the undercuts 25 on all sides to form further circular arc-shaped ring openings 27, which is reduced compared to the first perforation diameter in order to allow approximately the same air to pass through.
- the second annular opening 27 follow the side turn circular arc-shaped annular bulges 28, which release in ring undercuts 29 of the first plate buckle 26 further annular openings 30, which in turn corresponding annular bulges 31 fol- to cover 3 2 gene as well as a plane surface / as internal completion of the second cover plate.
- FIG. 12 there follows a further exemplary embodiment corresponding to FIG. 11 only that instead of the circular arc-shaped curvatures 26, 28 and 31 here elliptical curvatures 26a, 2 8 a and 31a are provided with corresponding focal points.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Schallschutzvorrichtung für Schallschutzwände an Straßen oder anderen Lärmquellen, wie insbesondere für Fenster und Türen an Gebäuden.The invention relates to a soundproofing device for soundproof walls on streets or other noise sources, such as in particular for windows and doors on buildings.
Man kennt nach der DE-OS 29 16 478 solche Schallschutzvorrichtungen bestehend aus mindestens zwei Reihen von Deckplatten, insbesondere -Leisten, welche im Abstand hintereinander angeordnet sind und jeweils zueinander versetzte Öffnungen aufweisen. Nach der DE-OS 14 34 235 ist es ferner bekannt bei Doppelrolläden gewölbte Rolladenleisten versetzt hintereinander anzuordnen, um so eine Abdeckung der Rolladenschlitze und damit eine gewisse Lärmdämmung zu erreichen, jedoch ohne einen Luftdruchlaß anzustreben.Such soundproofing devices are known from DE-OS 29 16 478 consisting of at least two rows of cover plates, in particular strips, which are arranged at a distance from one another and each have openings offset from one another. According to DE-OS 14 34 235 it is also known to arrange curved roller shutter slats staggered one behind the other in double roller shutters in order to achieve a covering of the roller shutter slits and thus a certain level of noise insulation, but without striving for air passage.
Aufgabe der Erfindung ist es nun ausgehend von der ersten Anordnung eine optimalere Lärmdämmung bei genügend Lüftungseigenschaften zu erreichen und überdies auch eine Lichtdurchlässigkeit zu ermöglichen, wobei der Schall durch die Eintrittsöffnungen zurückreflektiert werden soll.Based on the first arrangement, the object of the invention is now to achieve more optimal noise insulation with sufficient ventilation properties and, moreover, to enable light transmission, the sound being intended to be reflected back through the inlet openings.
Die Schallschutzvorrichtung nach der Erfindung bestehend aus mindestens zwei Reihen von Deckplatten, insbesondere -Leisten, welche im Abstand hintereinander angeordnet sind und jeweils zueinander versetzte Öffnungen aufweisen, kennzeichnet sich dadurch, daß die Öffnungen an Hinterschneidungen ihrer Öffnungsränder jeweils von im Abstand gehaltenen auf die Öffnungen zentrierte Wölbungsteile überdeckt sind, wobei der Mittelpunkt - Brennpunkt - zumindestens der hinterden ersten Öffnungen liegenden Wölbungsteile insbes. in oder über der ersten Öffnungsmitte liegt. Hierdurch wird eine weitgehende Schallreflektrierung erreicht.The soundproofing device according to the invention consisting of at least two rows of cover plates, ins Special strips, which are arranged at a distance from one another and each have openings offset from one another, are characterized in that the openings at undercuts of their opening edges are each covered by spaced-apart curved parts centered on the openings, the center - focal point - at least the rear first curvature parts lying in particular in or above the first center of the opening. As a result, extensive sound reflection is achieved.
Im einzelnen können auch die Mittelpunkte - Brennpunkte - aller aufeinanderfolgenden Wölbungsteile, welche Kreis-oder Ellipsenform aufweisen, insbes. in oder über der jeweiligen Öffnungsmitte liegen.In particular, the center points - focal points - of all successive curvature parts, which have a circular or elliptical shape, in particular can be located in or above the respective center of the opening.
Hierbei finden vorzugsweise gestaffelt hintereinandergesetzte Deckleisten mit im Querschnitt Doppel-T-Form Verwendung bei entsprechend angeordneten Kanalwölbungen, welche derart ineinandergreifen, daß eine gegenseitige Schlitzabdeckung mit zwischenliegenden Öffnungsschlitzen entsteht. Auch können die Öffnungen als Lochungen ausgebildet sein, zu denen kreisbogenförmige Teller- bzw. Ringkanalwölbungen mit zwischenliegenden Öffnungen folgend angeordnet sind.In this case, staggered cover strips with a double-T shape in cross-section are preferably used with appropriately arranged channel curvatures which interlock in such a way that a mutual slot cover with intervening opening slots is created. The openings can also be designed as perforations, followed by circular arc-shaped plate or ring channel arches with intermediate openings.
Schließlich können zur Bildung von Rolläden bei Verwendung von Deckleisten dieselben mittels Zapfen oder Rollen in seitliche Rolladenführungen greifen, welche am Einzugsende gegeneinander und versetzt abgewinkelt sind. oder aber die Deckleisten sind hängend nach Art von Vorhängen vorziehbar.Finally, when using cover strips, the same can be formed by means of pins or to form roller shutters Grip the rollers in the lateral roller shutter guides, which are angled and offset at the feed end. or the cover strips can be pulled down like curtains.
Weitere Einzelheiten der erfindungsgemäßen Schallschutzvorrichtung ergeben sich an Hand der in der Zeichnung dargestellten bevorzugten Ausführungsformen und zwar zeigen in schematischer Darstellung:
Das erste Ausführungsbeispiel nach Fig. 1 zeigt eine Schallschutzvorrichtung, bei welcher jeweils zwei Reihen von Deckleisten 1 und 2 vorgesehen, welche im Abstand hintereinander versetzt angeordnet sind. Die beiden Reihen von Deckleisten 1 und 2 an besitzen im Querschnitt Doppel-T-Form, wobei /der ersten Deckleistenreihe 1 Planflächen 3 nach außen und zwischenliegendgi Öffnungen in Form von breiteren mit Schlitzungen 4, an deren Hinterschneidungen 5/jeweils kreisbogenförmige Kanalwölbungen 6 vorgesehen sind, deren Kreismittelpunkt M 1 in der jeweiligen Öffnungsmitte der Schlitzungen 4 liegen. Die kreisbogenförmigen Kanalwölbungen 6 besitzen zur Bildung weiterer Öffnungsschlitze 7 beidseits einen entspr. Randabstand von den Hinterschneidungen 5, vorzugsweise in halber Breite zu den ersten Öffnungsschlitzen 4, da hier auf jeden Schlitz 4 zwei Seitenschlitze 7 folgen, um etwa gleichen Luftdurchtritt zu gewähren. Dem zweiten Öffnungsschlitz 7 folgen seitlich wiederum kreisbogenförmige Kanalwölbungen 8, welchen an Hinterschneidungen 9 der ersten Kanalwölbungen 6 weitere Öffnungsschlitze 10 freigeben, denen wiederum entsprechende Kanalwölbungen 11 zur Abdeckung folgen sowie Planflächen 12 als Innenabschluß.The first exemplary embodiment according to FIG. 1 shows a soundproofing device in which two rows of
Während zu den ersten Kanalwölbungen 6 der Kreismittelpunkt M 1 mittig im ersten Öffnungsschlitz 4 liegt, folgt zu den zweiten Kanalwölbungen 8 der Kreismittelpunkt M 2 jeweils mittig in den zweiten Öffnungsschlitzen 7 und zu den dritten Kanalwölbungen 11 der Kreismittelpunkt M 3 jeweils mittig in den dritten Öffnungsschlitzen 10. Durch diese Anordnung wird eine weitgehende Reflexion der durch die Lüftungsschlitze 4 eintretenden Schallwellen erreicht, wie dies in oen Fig. 2 bis 6 an Hand verschiedener Reflexionsbeispiele gezeigt ist; die Einfallswinkel sind jeweils ange-geben und sodann der Reflexionsweg mit dem Winkelaustritt eingezeichnet.While the center of the
Nach Fig. 7 ist eine Rolladenausführung gezeigt, wobei die Deckleisten 1 und 2 in waagrechter Anordnung mittels Zapfen oder Rollen 13,14 in seitlichen Rolladenführungen 15,16 greifen, welche am Einzugsende, wie aus Fig. 7 ersichtlich gegeneinander versetzt abbiegen, um so ein Auseinanderschwenken der ineinandergreifenden T-förmigen Deckleisten 1 und 2 beim Aufwickeln als getrennte Doppelrolläden zu ermöglichen.According to FIG. 7, a roller shutter version is shown, the
Nach Fig. 8 ist eine Vorhangausführung gezeigt, wobei die Deckleisten 1 und 2 in hängender Anordnung mittels Zapfen 17,18 in Deckenführungen 19,20 laufen und gleich- oder auch gegensinnig zurückzuziehen sind.According to FIG. 8, a curtain version is shown, the
Bei der Ausführungsform nach Fig. 9 sind gegenüber Fig. 1 erweiterte Schlitzungen 4a, 7a und 10a vorgesehen, wobei M1 auch weiter nach außen rücken kann entspr. M1' bzw. M1".In the embodiment according to FIG. 9, slits 4a, 7a and 10a are provided which are enlarged compared to FIG. 1, wherein M 1 can also move further outwards, corresponding to M 1 'or M 1 ".
Das weitere Ausführungsbeispiel nach Fig. 10 entspricht dem in Fig. 1 dargestellten nur, daß anstelle der kreisbogenförmigen Wölbungen 6, 8 und 11 hier elliptische Wölbungen 6a, 8a und 11a vorgesehen sind mit entsprechend liegenden Brennpunkten.The further embodiment according to FIG. 10 corresponds to that shown in FIG. 1 only that instead of the
Beim Ausführungsbeispiel nach Fig. 11 wird bei einer Schallschutzvorrichtung ausgegangen von Deckplatten 21 und 22, welche im Abstand hintereinander angeordnet sind. Die erste Deckplatte 21 ist mit ihrer Planflächen 23 nach außen gerichtet und weist Öffnungen in Form von Lochungen 24 auf, an deren Hinterschneidungen 25 jeweils kreisbogenförmige Tellerwölbungen 26 vorgesehen sind, deren Kreismittelpunkt M 1 in der jeweiligen Öffnungsmitte der Lochungen 24 liegen. Die kreisbogenförmige Tellerwölbung 26 besitzt zur Bildung weiterer kreisbogenförmige Ringöffnungen 27 allseits entspr. Randabstand von den Hinterschneidungen 25, welcher verringert ist gegenüber dem ersten Lochungsdurchmesser, um etwa gleichen Luftdurchtritt zu gewähren. Der zweiten Ringöffnung 27 folgen seitlich wiederum kreisbogenförmige Ringwölbungen 28, welchen in Ring-Hinterschneidungen 29 der ersten Tellerwölbung 26 weitere Ringöffnungen 30 freigeben, denen wiederum entsprechende Ringwölbungen 31 zur Abdeckung fol- 32 gen sowie eine Planfläche/als Innenabschluß der zweiten Deckplatte.In the exemplary embodiment according to FIG. 11, a soundproofing device is based on
Die Anordnung der Kreismittelpunkte M 1, M 2 und M 3 erfolgt analog der beim ersten Ausführungsbeispiel geschilderten, so daß auch die Reflexion der an den Luftöffnungen eintretenden Schallwelle entsprechend erfolgt. Schließlich folgt in Fig. 12 ein weiteres Ausführungsbeispiel entspr. Fig. 11 nur, daß anstelle der kreisbogenförmigen Wölbungen 26, 28 und 31 hier elliptische Wölbungen 26a, 28a und 31a vorgesehen sind mit entsprechend liegenden Brennpunkten.The arrangement of the center of
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82109861T ATE14147T1 (en) | 1981-11-14 | 1982-10-26 | NOISE PROTECTION DEVICE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3145269 | 1981-11-14 | ||
DE3145269A DE3145269C2 (en) | 1981-11-14 | 1981-11-14 | Soundproofing device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0079492A1 true EP0079492A1 (en) | 1983-05-25 |
EP0079492B1 EP0079492B1 (en) | 1985-07-03 |
Family
ID=6146395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82109861A Expired EP0079492B1 (en) | 1981-11-14 | 1982-10-26 | Sound-proofing device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0079492B1 (en) |
AT (1) | ATE14147T1 (en) |
DE (1) | DE3145269C2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4636444A (en) * | 1985-12-18 | 1987-01-13 | Lucio Lombardozzi | Thermal panel |
US4810553A (en) * | 1985-12-18 | 1989-03-07 | Lucio Lombardozzi | Thermal panel |
FR2635127A1 (en) * | 1988-08-03 | 1990-02-09 | Sotralentz Sa | Noise screen, in particular for the edges of motorways |
KR100834294B1 (en) | 2008-02-21 | 2008-05-30 | 태성이엔씨(주) | Sound-absorbing sound insulation board with multi-diffraction interference slit |
FR2990220A1 (en) * | 2012-05-07 | 2013-11-08 | Terreal | CIRCULATION SURFACE FOR VEHICLES AND PIETONS |
US9187867B2 (en) | 2014-02-26 | 2015-11-17 | Terreal | Pavement for vehicles and pedestrians |
CN111472664A (en) * | 2020-04-16 | 2020-07-31 | 曹丽娟 | Sound-insulation ventilating window |
CN116463971A (en) * | 2023-06-20 | 2023-07-21 | 西南石油大学 | A light-weight translucent concrete honeycomb sound insulation wall and its assembly method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1882697U (en) * | 1962-03-14 | 1963-11-14 | Applied Acoustics Ltd | STRIP FOR THE FORMATION OF SOUND-ABSORBING COVERINGS. |
CH441692A (en) * | 1965-03-27 | 1967-08-15 | Eberspaecher J | Structural arrangement on windows to protect against outside noise |
DE1434235A1 (en) * | 1960-05-19 | 1968-10-31 | Klinke Dipl Ing Willi | Procedure for noise control using vacuum chambers and the Doppler effect |
DE6604008U (en) * | 1966-10-10 | 1969-11-27 | Walter Kroll | AIR- AND LIGHT-PERMEABLE SOUND SHIELDING DEVICE. |
GB1212052A (en) * | 1967-06-20 | 1970-11-11 | Jos Verstraete & Fils Ets | Sound-damping elements |
DE2916478A1 (en) * | 1979-04-24 | 1980-10-30 | Johannes Wusowski | Ventilated window or door noise screen shutter - has offset slits in horizontal rows of insulation coated strips |
-
1981
- 1981-11-14 DE DE3145269A patent/DE3145269C2/en not_active Expired
-
1982
- 1982-10-26 AT AT82109861T patent/ATE14147T1/en not_active IP Right Cessation
- 1982-10-26 EP EP82109861A patent/EP0079492B1/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1434235A1 (en) * | 1960-05-19 | 1968-10-31 | Klinke Dipl Ing Willi | Procedure for noise control using vacuum chambers and the Doppler effect |
DE1882697U (en) * | 1962-03-14 | 1963-11-14 | Applied Acoustics Ltd | STRIP FOR THE FORMATION OF SOUND-ABSORBING COVERINGS. |
CH441692A (en) * | 1965-03-27 | 1967-08-15 | Eberspaecher J | Structural arrangement on windows to protect against outside noise |
DE6604008U (en) * | 1966-10-10 | 1969-11-27 | Walter Kroll | AIR- AND LIGHT-PERMEABLE SOUND SHIELDING DEVICE. |
GB1212052A (en) * | 1967-06-20 | 1970-11-11 | Jos Verstraete & Fils Ets | Sound-damping elements |
DE2916478A1 (en) * | 1979-04-24 | 1980-10-30 | Johannes Wusowski | Ventilated window or door noise screen shutter - has offset slits in horizontal rows of insulation coated strips |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4636444A (en) * | 1985-12-18 | 1987-01-13 | Lucio Lombardozzi | Thermal panel |
US4810553A (en) * | 1985-12-18 | 1989-03-07 | Lucio Lombardozzi | Thermal panel |
FR2635127A1 (en) * | 1988-08-03 | 1990-02-09 | Sotralentz Sa | Noise screen, in particular for the edges of motorways |
KR100834294B1 (en) | 2008-02-21 | 2008-05-30 | 태성이엔씨(주) | Sound-absorbing sound insulation board with multi-diffraction interference slit |
FR2990220A1 (en) * | 2012-05-07 | 2013-11-08 | Terreal | CIRCULATION SURFACE FOR VEHICLES AND PIETONS |
US9187867B2 (en) | 2014-02-26 | 2015-11-17 | Terreal | Pavement for vehicles and pedestrians |
CN111472664A (en) * | 2020-04-16 | 2020-07-31 | 曹丽娟 | Sound-insulation ventilating window |
CN116463971A (en) * | 2023-06-20 | 2023-07-21 | 西南石油大学 | A light-weight translucent concrete honeycomb sound insulation wall and its assembly method |
CN116463971B (en) * | 2023-06-20 | 2023-08-18 | 西南石油大学 | Light-weight light-transmitting concrete honeycomb sound insulation wall and assembling method |
Also Published As
Publication number | Publication date |
---|---|
ATE14147T1 (en) | 1985-07-15 |
EP0079492B1 (en) | 1985-07-03 |
DE3145269A1 (en) | 1983-05-26 |
DE3145269C2 (en) | 1985-03-21 |
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