EP 3086570 B1 20190904 - SPEAKER AND FILM FOR USE IN SPEAKER DIAPHRAGM
Title (en)
SPEAKER AND FILM FOR USE IN SPEAKER DIAPHRAGM
Title (de)
LAUTSPRECHER UND FOLIE ZUR VERWENDUNG IN DER LAUTSPRECHERMEMBRAN
Title (fr)
HAUT-PARLEUR ET FILM POUR UTILISATION DANS UNE MEMBRANE DE HAUT-PARLEUR
Publication
Application
Priority
EP 15165028 A 20150424
Abstract (en)
[origin: EP3086570A1] The invention pertains to a speaker comprising a magnet, a voice coil, and a diaphragm, wherein the diaphragm comprises tapes of ultra-high molecular weight polyethylene, the tapes having an uniplanar orientation parameter of at least 3. The invention also pertains to the use of tapes of ultra-high molecular weight polyethylene, the tapes having an uniplanar orientation parameter of at least 3, in a diaphragm of a speaker comprising a magnet, a voice coil, and a diaphragm. The invention further pertains to a method of manufacturing a diaphragm suitable for use in a speaker wherein layers comprising tapes of ultra-high molecular weight polyethylene, the tapes having an uniplanar orientation parameter of at least 3, are shaped by placing the layers in a mold suitable to obtain a diaphragm shape, and heating the material under such conditions that a molded shape is obtained, but at a temperature which is below the melting temperature of the UHMWPE tapes.
IPC 8 full level
H04R 7/02 (2006.01); H04R 31/00 (2006.01)
CPC (source: EP)
H04R 7/02 (2013.01); H04R 31/003 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 15165028 A 20150424