EP0392407A3 - Sound-absorbing body - Google Patents

Sound-absorbing body Download PDF

Info

Publication number
EP0392407A3
EP0392407A3 EP19900106732 EP90106732A EP0392407A3 EP 0392407 A3 EP0392407 A3 EP 0392407A3 EP 19900106732 EP19900106732 EP 19900106732 EP 90106732 A EP90106732 A EP 90106732A EP 0392407 A3 EP0392407 A3 EP 0392407A3
Authority
EP
European Patent Office
Prior art keywords
absorbing body
layer
fleece
felt
sound
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.)
Ceased
Application number
EP19900106732
Other languages
German (de)
French (fr)
Other versions
EP0392407A2 (en
Inventor
Hans-Joachim Gieger
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.)
GERHARD SCHMIERER MASCHINEN- ANLAGENBAU
Original Assignee
GERHARD SCHMIERER MASCHINEN- ANLAGENBAU
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 GERHARD SCHMIERER MASCHINEN- ANLAGENBAU filed Critical GERHARD SCHMIERER MASCHINEN- ANLAGENBAU
Publication of EP0392407A2 publication Critical patent/EP0392407A2/en
Publication of EP0392407A3 publication Critical patent/EP0392407A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Abstract

Schallschluckender Körper (10), bestehend aus mindestens einer elastisch verformbaren Schicht (11), wie Gummi, Kunststoff od. dgl., und mindestens einer plastisch nachgiebigen Schicht (13), wie Flies, Filz od.dgl., wobei die elastisch verformbare Schicht (11) aus einer gewirkten Bahn aus Kunststoffäden besteht und die gewirkte Bahn mit Vorsprüngen (12) in Form von geprägten Noppen, aufgesetzten Granulat-Teilen od.dgl. versehen ist, während die plastisch nachgiebige Schicht (13) aus Flies, Filz od.dgl. mit einer feste Füllstoffe aufweisenden Tränkung versehen ist. Sound absorbing body (10), consisting of at least one elastically deformable layer (11), such as rubber, plastic or the like, and at least one plastically compliant layer (13), such as fleece, felt or the like, the elastically deformable layer (11) consists of a knitted web of plastic threads and the knitted web with projections (12) in the form of embossed knobs, attached granulate parts or the like. is provided, while the plastically flexible layer (13) made of fleece, felt or the like. is provided with an impregnation containing solid fillers.

EP19900106732 1989-04-08 1990-04-07 Sound-absorbing body Ceased EP0392407A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911561 1989-04-08
DE19893911561 DE3911561A1 (en) 1989-04-08 1989-04-08 SOUND-SWALLOWING BODY

Publications (2)

Publication Number Publication Date
EP0392407A2 EP0392407A2 (en) 1990-10-17
EP0392407A3 true EP0392407A3 (en) 1992-03-18

Family

ID=6378250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900106732 Ceased EP0392407A3 (en) 1989-04-08 1990-04-07 Sound-absorbing body

Country Status (2)

Country Link
EP (1) EP0392407A3 (en)
DE (1) DE3911561A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281777A (en) * 1993-03-02 1994-01-25 Alton Jr Noyal J Fluid damped acoustic enclosure system
KR100250369B1 (en) * 1997-09-26 2000-04-01 전주범 A vibration prevention device of for woofer for television
EP1113123A1 (en) † 1999-12-29 2001-07-04 Manfred Elsässer Composite soundproofing system for room-limiting surfaces
DE10024030B4 (en) * 2000-05-16 2009-07-02 Schürmann, Wolfram Method for producing spacers on a strip-shaped base material and strip-shaped base material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1447125A1 (en) * 1964-09-24 1971-08-05 Kurtze Guenther Dipl Phys Prof Broadband effective anechoic sound absorber of small thickness for liquid sound
FR2432196A1 (en) * 1978-06-19 1980-02-22 Bosch Siemens Hausgeraete Washing machine sound absorbing panel - has channelled plate filled with sand held by binder
EP0037997A1 (en) * 1980-04-10 1981-10-21 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Damped structure
DE3102870A1 (en) * 1981-01-29 1982-08-19 Hans-Joachim 3300 Braunschweig Gieger HOUSING SPEAKER
US4769271A (en) * 1986-11-04 1988-09-06 Masami Sekimoto Sound insulation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1447125A1 (en) * 1964-09-24 1971-08-05 Kurtze Guenther Dipl Phys Prof Broadband effective anechoic sound absorber of small thickness for liquid sound
FR2432196A1 (en) * 1978-06-19 1980-02-22 Bosch Siemens Hausgeraete Washing machine sound absorbing panel - has channelled plate filled with sand held by binder
EP0037997A1 (en) * 1980-04-10 1981-10-21 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Damped structure
DE3102870A1 (en) * 1981-01-29 1982-08-19 Hans-Joachim 3300 Braunschweig Gieger HOUSING SPEAKER
US4769271A (en) * 1986-11-04 1988-09-06 Masami Sekimoto Sound insulation

Also Published As

Publication number Publication date
EP0392407A2 (en) 1990-10-17
DE3911561A1 (en) 1990-10-11

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