EP 2317775 B1 20140827 - Speaker surround structure for maximizing cone diameter
Title (en)
Speaker surround structure for maximizing cone diameter
Title (de)
Lautsprechereinfassungsstruktur zur Maximierung des Konusdurchmessers
Title (fr)
Structure d'entourage de haut-parleur permettant de maximiser le diamètre de cone
Publication
Application
Priority
- EP 02704186 A 20020118
- US 78383701 A 20010119
Abstract (en)
[origin: WO02058433A1] In a compact speaker, to enable the deployment of a diaphragm (14) of larger diameter than is used conventionally for the corresponding basket (10) size, the outer basket-attachment portion of the surround-suspension (12) is made in a special configuration shaped as an axial skirt (16a), i.e. generally tubular in the case of a round speaker basket, instead of the planar shape of the basket-attachment portion of conventionally speakers. The speaker basket (10) of the present invention is made with a corresponding axial peripheral flange of which the inner wall made to serve as a landing (20) for adhesive attachment to the outer wall of the axial surround suspension flange. This special configuration retains the required resilience and capability of full excursion while enabling enlargement of the effective vibrating piston area substantially by deployment of a larger cone. The basket may be of the type that is stamped from metal, e.g. as in popular conventional speakers, or in other embodiments it may be cast from metal or molded from suitable plastic material. The outer attachment member of this surround-suspension is preferably configured in a special cross-sectional shape that maximizes the area available for adhesive attachment to the basket.
IPC 8 full level
CPC (source: EP KR)
H04R 7/20 (2013.01 - EP); H04R 7/22 (2013.01 - KR); H04R 2307/204 (2013.01 - EP); H04R 2307/207 (2013.01 - EP)
Citation (examination)
US 5748759 A 19980505 - CROFT JAMES JOSEPH [US], et al
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 02058433 A1 20020725; WO 02058433 A8 20031204; CN 101291548 A 20081022; CN 101291548 B 20130327; CN 1496662 A 20040512; EP 1364556 A1 20031126; EP 1364556 A4 20070328; EP 1364556 B1 20111005; EP 2317775 A1 20110504; EP 2317775 B1 20140827; JP 2004521538 A 20040715; JP 2008113469 A 20080515; JP 2012039647 A 20120223; JP 4926992 B2 20120509; KR 100902203 B1 20090611; KR 20030066822 A 20030809; KR 20080081371 A 20080909; MX PA03006443 A 20041015
DOCDB simple family (application)
US 0201648 W 20020118; CN 02806629 A 20020118; CN 200810096075 A 20020118; EP 02704186 A 20020118; EP 10012998 A 20020118; JP 2002558780 A 20020118; JP 2008016750 A 20080128; JP 2011222243 A 20111006; KR 20037009605 A 20030719; KR 20087020117 A 20080818; MX PA03006443 A 20020118