EP 1516318 A1 20050323 - SOUND ABSORBER COMPRISING TWO PARTS DELIMITING A HOLLOW SPACE
Title (en)
SOUND ABSORBER COMPRISING TWO PARTS DELIMITING A HOLLOW SPACE
Title (de)
SCHALL-ABSORBER MIT ZWEI TEILEN, DIE EINEN HOHLRAUM BEGRENZEN
Title (fr)
ISOLANT ACOUSTIQUE COMPRENANT DEUX PIECES QUI DEFINISSENT UNE CAVITE
Publication
Application
Priority
- DE 10228395 A 20020625
- EP 0306713 W 20030625
Abstract (en)
[origin: DE10228395C1] The acoustic insulation, to absorb noise and especially in motor vehicles, has a shaped body (1) of a thermoplastic material and at least one further component (2) which defines a hollow zone (7) with the body. The second component is a heavy layer, a nonwoven and/or an acoustic textile fabric. A number of pins or spikes at the body project into the hollow zone to form spacers (4) against the second part. The outer surface of the body has a number of depressions (6), each extending into a spacer. The body is shaped by deep drawing a thermoplastic film, with a mounting flange (3) around it, to give a cassette structure..
IPC 1-7
IPC 8 full level
B32B 3/26 (2006.01); G10K 11/16 (2006.01); G10K 11/162 (2006.01); G10K 11/172 (2006.01)
CPC (source: EP US)
G10K 11/172 (2013.01 - EP US)
Citation (search report)
See references of WO 2004001718A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 10228395 C1 20031204; AU 2003278247 A1 20040106; BR 0312049 A 20070529; CN 1662953 A 20050831; EP 1516318 A1 20050323; JP 2005531022 A 20051013; MX PA04012835 A 20050331; US 2005241877 A1 20051103; WO 2004001718 A1 20031231; ZA 200410073 B 20061025
DOCDB simple family (application)
DE 10228395 A 20020625; AU 2003278247 A 20030625; BR 0312049 A 20030625; CN 03814860 A 20030625; EP 0306713 W 20030625; EP 03740341 A 20030625; JP 2004514861 A 20030625; MX PA04012835 A 20030625; US 51926505 A 20050630; ZA 200410073 A 20041214