EP0239981B1 - Gegen Abhören von aussen gesichertes Aggregat aus mehreren Glasscheiben - Google Patents

Gegen Abhören von aussen gesichertes Aggregat aus mehreren Glasscheiben Download PDF

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Publication number
EP0239981B1
EP0239981B1 EP87104709A EP87104709A EP0239981B1 EP 0239981 B1 EP0239981 B1 EP 0239981B1 EP 87104709 A EP87104709 A EP 87104709A EP 87104709 A EP87104709 A EP 87104709A EP 0239981 B1 EP0239981 B1 EP 0239981B1
Authority
EP
European Patent Office
Prior art keywords
pane
assembly according
noise
panes
thickness
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.)
Expired - Lifetime
Application number
EP87104709A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0239981A3 (en
EP0239981A2 (de
Inventor
Paul Dr. Dipl.-Phys. Derner
Peter Dipl.-Phys. Reichmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flachglas Wernberg GmbH
Original Assignee
Flachglas Wernberg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flachglas Wernberg GmbH filed Critical Flachglas Wernberg GmbH
Priority to AT87104709T priority Critical patent/ATE51677T1/de
Publication of EP0239981A2 publication Critical patent/EP0239981A2/de
Publication of EP0239981A3 publication Critical patent/EP0239981A3/de
Application granted granted Critical
Publication of EP0239981B1 publication Critical patent/EP0239981B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • 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
    • E06B5/205—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise windows therefor
    • 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
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6707—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased acoustical insulation

Definitions

  • the invention relates generically to an aggregate, secured against eavesdropping from outside, which can be used in particular in a window frame, comprising a plurality of glass panes with an outer pane, inner pane, spacer frame, gas-filled pane interspace and noise generator, the gas filling of the pane interspace being able to be caused to cause interference vibrations by the noise generator.
  • Such an aggregate is intended to prevent eavesdropping on conversations held in an interior by directional microphones, vibration sensors attached to the outside of the pane and, if appropriate, laser remote sensing.
  • disturbing noise exciter refers to an apparatus which is able to set another body or a gas into sound vibrations and in this sense to transmit or also radiate sound energy.
  • a noise generator is an electrical / acoustic converter.
  • the electromagnetic currents or pulses are generated in a mostly electronic generator, which works concretely as an interference frequency generator within the scope of the invention.
  • the glass panes are not combined to form a multi-pane insulating glass unit from the point of view of sound insulation.
  • a thick glass pane is provided on the inside, in front of which a glass pane of the same thickness is arranged at a large distance from the outside.
  • a thinner pane of glass follows outwards at a smaller distance.
  • the noise generator is a loudspeaker and emits the noise to the air filling. The noise is not specially set up in terms of frequency.
  • the invention has for its object to further develop a generic unit so that proven sound insulation measures can be used, can work with a relatively low level of noise and so far low in energy and radiation of the disturbance practically does not occur.
  • the multi-pane insulating glass unit is set up for a rated sound insulation value of over 40 dB according to DIN 52 210 and the structure-borne sound generator is so excited that the thermal noise emitted to the outside from the outer pane covers the transmitted sound in the entire frequency range specified above by at least 10 dB.
  • thermal noise means that it is a mixture of statically distributed sound frequencies, which arises, for example, in electrical amplifiers from the inevitable thermal movement of the electrons. This mixture is initially a white noise. It is deformed in terms of amplitude (energy) and frequency in accordance with the condition that the thermal noise radiated outward from the outer pane covers the transmitted sound by at least 10 dB.
  • the structure-borne sound generator is designed for thermal noise in the frequency range from 200 to 3000 Hz
  • the structure-borne sound generator in this frequency range can convert the electromagnetic vibrations or impulses supplied into interference sound and transmit it directly to the outer pane.
  • the assigned generator is set up accordingly.
  • the invention also makes use of the fact that each multi-pane insulating glass unit has a specific sound insulation curve which can be easily determined experimentally as a function of the frequency or is known from certain literature for certain multi-pane insulating glass units. Knowing this sound insulation curve, the condition that the thermal noise radiated outward from the outer pane covers the transmitted sound in the entire frequency range by at least 10 dB can be easily met by setting up or deforming the white noise by influencing the interference frequency generator.
  • the combination according to the invention makes a multi-pane insulating glass unit known in its basic structure into a tap-proof unit made of several glass panes.
  • the invention uses the knowledge that speech is no longer intelligible if it is covered by noise above 10 dB.
  • the noise is radiated outwards from the outer pane designed according to feature a), but surprisingly does not reach the inside if the inner pane is constructed according to feature a), the gas filling is selected according to feature b) and the structure-borne noise works on the outer pane.
  • the gas filling in the disturbing noise also comes into corresponding vibrations, these vibrations are practically not emitted towards the interior. They are vibrations of very low energy, so that an internal radiation can practically not take place.
  • the coverage covers the entire frequency range from e.g. 200 to 3000 Hz, but can also go beyond this frequency range. It goes without saying that extensive security against eavesdropping is achieved even if the space between the panes is only filled with air. However, the embodiment with a gas filling corresponding to feature b) of the combination is considerably more effective.
  • a preferred embodiment of the invention is characterized in that the inner pane is constructed as a laminated glass pane with a vibration-damping composite material, such as cast resin.
  • An optimal embodiment is characterized in that the laminated glass inner pane has two glass panes, each about 6 mm thick, which are connected by a cast resin layer of 1 mm and more (D ⁇ 13).
  • the outer pane can have a thickness of approximately 4 mm, the intermediate space a thickness of approximately 12 mm. If the unit according to the invention is also to be bug-proof against remote laser scanning, the invention teaches that in a further combination with the combination features described above, the inside of the outer pane has a reflective coating.
  • This reflective coating can be formed in a manner known per se, e.g. evaporated, and according to a preferred embodiment of the invention, it is particularly effective in the infrared range, so that the scanning cannot be carried out with infrared lasers.
  • a further embodiment of the invention is characterized in this context in that the inner pane has an anti-reflection coating on the inside, which is particularly effective in the infrared range. It is understood that the inner pane and the outer pane are largely decoupled within the scope of the invention. To this end, the invention recommends, in a further combination with all of the combination features described above, that the spacer frame is designed as a decoupled frame.
  • the invention teaches a further interception protection, which is characterized in that the window frame has an outer shell which is decoupled from the window frame, the window frame and / or the outer shell having a further structure-borne sound generator which emits thermal noise and onto which Front shell works.
  • the window frame has an outer shell which is decoupled from the window frame, the window frame and / or the outer shell having a further structure-borne sound generator which emits thermal noise and onto which Front shell works.
  • the unit consists of an outer pane 1, an inner pane 2, 3, 4, a spacer frame 5 between the outer pane 1 and the inner pane 2, 3, 4, which defines the gas-filled pane space 6, and a structure-borne sound generator 7. There is a gas filling in the pane space 6.
  • the glass panes 1 and 2, 3, 4 form a multi-pane insulating glass unit, specifically one with a laminated glass inner pane 2, 3, 4 with glass panes 2 and 4 and the laminated layer 3 and the common thickness D and with an outer pane 1 of thickness d, where D / d is greater than 1.5, is 3 in the exemplary embodiment.
  • the gas filling of the intermediate space 6 consists of a gas / air mixture, the density of which is greater than that of air. It may be a sulfur hexafluoride and air filling. Mixing ratio, for example 30% sulfur hexafluoride, 70% air.
  • the structure-borne sound generator 7 is set up for thermal noise in the frequency range from 200 to 3000 Hz. However, it does not work on the gas filling in the space between the panes 6, but rather on the outer pane 1.
  • the multi-pane insulating glass unit is designed for the weighted sound reduction index specified in the main claim in accordance with DIN 52 210.
  • the structure-borne sound generator 7 is designed so that the thermal noise radiated outward from the outer pane covers the transmitted sound by at least 10 dB. In this way it is absolutely possible to work with a very low level for the thermal noise.
  • Fig. 2 serves as an explanation. The frequency is plotted on the abscissa axis and the sound level in dB on the ordinate axis.
  • the solid curve corresponds to the sound that is let through to the outside when loudly spoken in an interior to which the unit shown in FIG. 1 belongs as a window.
  • the dashed curve corresponds to the noise emitted to the outside.
  • the noise level is higher by at least 10 dB everywhere.
  • the two glass panes 2, 4 each have a thickness of approximately 6 mm. They are connected to one another by a cast resin layer 3 of approximately 1 or 1.2 mm. In contrast, the outer pane 1 has only a thickness of approximately 4 mm. The space between the panes 6 is 12 mm thick.
  • the outer pane 1 in the exemplary embodiment has a reflective coating 8 on the inside, in particular in the infrared effective and prevents laser remote scanning.
  • the spacer frame 5 is designed as a decoupling frame.
  • the window frame expediently has a facing shell on the outside, which is decoupled from the window frame. In this way it can be prevented that sound can penetrate to the outside through the window frame and be listened to. This is particularly the case if the unit comprising the window frame and the facing shell has a further structure-borne sound generator, which emits thermal noise on the facing shell in the manner specified.
EP87104709A 1986-04-04 1987-03-31 Gegen Abhören von aussen gesichertes Aggregat aus mehreren Glasscheiben Expired - Lifetime EP0239981B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87104709T ATE51677T1 (de) 1986-04-04 1987-03-31 Gegen abhoeren von aussen gesichertes aggregat aus mehreren glasscheiben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611214A DE3611214C1 (de) 1986-04-04 1986-04-04 Gegen Abhoeren von aussen gesicherte Verglasung
DE3611214 1986-04-04

Publications (3)

Publication Number Publication Date
EP0239981A2 EP0239981A2 (de) 1987-10-07
EP0239981A3 EP0239981A3 (en) 1988-08-03
EP0239981B1 true EP0239981B1 (de) 1990-04-04

Family

ID=6297860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104709A Expired - Lifetime EP0239981B1 (de) 1986-04-04 1987-03-31 Gegen Abhören von aussen gesichertes Aggregat aus mehreren Glasscheiben

Country Status (7)

Country Link
US (1) US4829729A (ja)
EP (1) EP0239981B1 (ja)
JP (1) JPS632099A (ja)
AT (1) ATE51677T1 (ja)
DE (2) DE3611214C1 (ja)
ES (1) ES2014270B3 (ja)
GR (1) GR3000804T3 (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT214932Z2 (it) * 1988-12-28 1990-07-04 Siv Soc Italiana Vetro Vetratura isolante per veicolo
US5131194A (en) * 1989-05-08 1992-07-21 Macarthur Company Sound barrier window
CA2033425A1 (en) * 1990-01-09 1991-07-10 Shlomo Avni Eavesdropping-proof room and sound dampening devices therefor
DE19529975C2 (de) * 1995-08-16 1999-04-01 Guenter Dr Rer Nat Hoff Verfahren zur Erhöhung der Wärmeisolation von mit Füllgas gefüllten Mehrscheibenfenstern sowie höchstisolierende Mehrscheibenfenster zur Durchführung dieses Verfahrens
US5732517A (en) * 1996-02-23 1998-03-31 Milikovsky; Roman Window structure
IT1287228B1 (it) * 1996-04-10 1998-08-04 Finvetro Srl Dispositivo particolarmente per la compensazione tra le pressioni interna ed esterna in una vetrocamera
US5787652A (en) * 1996-08-20 1998-08-04 Tai; Liang-Ching Window insulating assembly for vehicles
CA2266923A1 (en) * 1997-07-31 1999-02-11 Kyoyu Corporation Voice monitoring system using laser beam
US20040226232A1 (en) * 2002-06-07 2004-11-18 Comfort Design, Inc. Fenestration frame assemblies, e.g. retrofit window frame assemblies, and methods of installing same
US6807778B2 (en) 2002-06-07 2004-10-26 Comfort Design, Inc. Fenestration frame assemblies, e.g. retrofit window frame assemblies, and methods of installing same
US20050050815A1 (en) * 2002-06-07 2005-03-10 David Engebretson Fenestration frame assemblies and associated methods
US20040125922A1 (en) * 2002-09-12 2004-07-01 Specht Jeffrey L. Communications device with sound masking system
US6957516B2 (en) 2002-12-03 2005-10-25 Smart Skin, Inc. Acoustically intelligent windows
US8082707B1 (en) 2006-10-13 2011-12-27 Damping Technologies, Inc. Air-film vibration damping apparatus for windows
US7721844B1 (en) * 2006-10-13 2010-05-25 Damping Technologies, Inc. Vibration damping apparatus for windows using viscoelastic damping materials
US8203850B2 (en) * 2008-02-05 2012-06-19 Vector Technologies, Llc Anti-eavesdropping device
US8699235B2 (en) * 2010-02-17 2014-04-15 Cdd Ventures Llc Mobile phone/PDA security masking box
US9645120B2 (en) 2014-09-04 2017-05-09 Grant Nash Method and apparatus for reducing noise transmission through a window
US11335312B2 (en) 2016-11-08 2022-05-17 Andersen Corporation Active noise cancellation systems and methods
DE112018001454T5 (de) * 2017-03-20 2019-12-12 Jaguar Land Rover Limited Vorrichtung und verfahren zur verbesserung der privatsphäre
CN107598657B (zh) * 2017-07-24 2019-08-13 宁夏共享机床辅机有限公司 一种用于机床防护的降噪结构
EA035603B1 (ru) * 2017-12-14 2020-07-15 Ерлан Жандарбекович Джунусбеков Устройство и виброгенератор для подавления акустических шумов
WO2019213503A1 (en) 2018-05-04 2019-11-07 Andersen Corporation Multiband frequency targeting for noise attenuation
CN112513399A (zh) * 2018-05-14 2021-03-16 旭硝子欧洲玻璃公司 非对称真空隔热玻璃窗单元
CN108915546B (zh) * 2018-08-16 2023-09-08 吉林大学 一种主被动结合的降噪玻璃板及其主动降噪方法
EP4065792A1 (en) * 2019-11-26 2022-10-05 VKR Holding A/S A roof window with an acoustic laminated vacuum insulated glass unit

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
CH548522A (de) * 1972-10-13 1974-04-30 Hartmann & Co W Schalldaemmendes fenster.
FR2284746A1 (fr) * 1974-09-16 1976-04-09 Bfg Glassgroup Panneau transparent a proprietes acoustiques ameliorees
DE2457037B2 (de) * 1974-12-03 1976-09-16 Flachglas Ag Delog-Detag, 4650 Gelsenkirchen Verglasungseinheit, insbesondere isolierglasscheibe, fuer brandschutzzwecke
US4052564A (en) * 1975-09-19 1977-10-04 Herman Miller, Inc. Masking sound generator
US4319088A (en) * 1979-11-01 1982-03-09 Commercial Interiors, Inc. Method and apparatus for masking sound
US4352039A (en) * 1980-07-25 1982-09-28 The United States Of America As Represented By The Secretary Of The Army Sonic transducer
DE3213101A1 (de) * 1982-02-15 1983-10-20 Günter 8130 Starnberg Hehemann Elektronisches schallschutzsystemfenster
FR2529609A1 (fr) * 1982-07-05 1984-01-06 Saint Gobain Vitrage Vitrage multiple a proprietes d'isolation thermique et acoustique
DE3417971A1 (de) * 1984-05-15 1985-11-21 Kaefer Isoliertechnik Gmbh & Co Kg, 2800 Bremen Wandausbildung fuer abhoergeschuetzte raeume
US4610115A (en) * 1984-12-17 1986-09-09 Ppg Industries, Inc. Multiple-glazed combination vision and spandrel architectural panel and curtainwall
GB8508092D0 (en) * 1985-03-28 1985-05-01 Glaverbel Transparent glazing panels
US4686693A (en) * 1985-05-17 1987-08-11 Sound Mist, Inc. Remotely controlled sound mask

Also Published As

Publication number Publication date
DE3611214C1 (de) 1986-12-11
JPH0443556B2 (ja) 1992-07-16
GR3000804T3 (en) 1991-11-15
DE3762140D1 (de) 1990-05-10
EP0239981A3 (en) 1988-08-03
JPS632099A (ja) 1988-01-07
ES2014270B3 (es) 1990-07-01
ATE51677T1 (de) 1990-04-15
EP0239981A2 (de) 1987-10-07
US4829729A (en) 1989-05-16

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