EP 2239959 A4 20110119 - VIBRATION PLATE, SPEAKER, ACOUSTIC SYSTEM AND METHOD OF MANUFACTURING VIBRATION PLATE

Title (en)

VIBRATION PLATE, SPEAKER, ACOUSTIC SYSTEM AND METHOD OF MANUFACTURING VIBRATION PLATE

Title (de)

SCHWINGUNGSPLATTE, LAUTSPRECHER, AKUSTISCHES SYSTEM UND VERFAHREN ZUR HERSTELLUNG EINER SCHWINGUNGSPLATTE

Title (fr)

PLAQUE VIBRANTE, HAUT-PARLEUR, SYSTÈME ACOUSTIQUE ET PROCÉDÉ PERMETTANT DE FABRIQUER UNE PLAQUE VIBRANTE

Publication

EP 2239959 A4 20110119 (EN)

Application

EP 09700720 A 20090107

Priority

JP 2009050052 W 20090107
JP 2008000345 A 20080107
JP 2008042113 A 20080222
JP 2008042115 A 20080222
JP 2008042118 A 20080222
JP 2008042122 A 20080222

Abstract (en)

[origin: EP2239959A1] A diaphragm 1 includes a vibration member 10 including a first-region and second-region portions formed integrally with each other by using an isotropic material. The vibration member 10 has, in the first-region portion, reinforcement portions 13a to 13d in which a Young's modulus is higher than in the second-region portion. The reinforcement portions 13a to 13d are obtained by press molding in which a pressure applied to the first-region portion is stronger than a pressure applied to the second-region portion.

IPC 8 full level

H04R 7/14 (2006.01); H04R 1/40 (2006.01); H04R 5/02 (2006.01); H04R 9/02 (2006.01); H04R 31/00 (2006.01); H04R 7/12 (2006.01); H04R 7/20 (2006.01)

CPC (source: EP)

H04R 1/403 (2013.01); H04R 5/02 (2013.01); H04R 7/14 (2013.01); H04R 7/20 (2013.01); H04R 31/003 (2013.01); H04R 2205/022 (2013.01); H04R 2231/001 (2013.01)

Citation (search report)

[YA] US 2005078850 A1 20050414 - NORTON JOHN M [US]
[YA] US 2007263888 A1 20071115 - MELANSON JOHN L [US]
[A] WO 03073813 A1 20030904 - CHRISTIE CARY L [US]
[A] US 2003079936 A1 20030501 - KUZE MITSUKAZU [JP], et al
See references of WO 2009088002A1

Designated contracting state (EPC)

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 SE SI SK TR

DOCDB simple family (publication)

EP 2239959 A1 20101013; EP 2239959 A4 20110119; EP 2239959 B1 20130102; CN 101919269 A 20101215; CN 101919269 B 20140903; JP 5088377 B2 20121205; JP WO2009088002 A1 20110526; WO 2009088002 A1 20090716

DOCDB simple family (application)

EP 09700720 A 20090107; CN 200980101723 A 20090107; JP 2009050052 W 20090107; JP 2009548931 A 20090107