EP 2239959 A1 20101013 - 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
Application
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)
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 7/12 (2006.01); H04R 7/20 (2006.01); H04R 9/02 (2006.01); H04R 31/00 (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)
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
Designated extension state (EPC)
AL BA RS
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