EP 0624048 A1 19941109 - Structure for supporting a vibrating system of a loudspeaker.
Title (en)
Structure for supporting a vibrating system of a loudspeaker.
Title (de)
Anordnung zum Stützen eines Schwingsystems in einem Lautsprecher.
Title (fr)
Structure de support d'un système vibrant de haut-parleur.
Publication
Application
Priority
JP 10541193 A 19930506
Abstract (en)
A loudspeaker has a yoke base (11a), a center pole (10) formed on the yoke base (11a), an annular magnet mounted (13) on the yoke base (11a), and an annular plate (14) mounted on the magnet (13) so as to form a gap (G) between an inside wall thereof and an outer wall of the center pole (10). A cap (20) made of resin and having a cylindrical portion (20a) is securely mounted on the top of the center pole (10). The cylindrical portion (20a) is disposed in the gap (G). A plurality of projections (21) is formed on the cylindrical portion (20a), each of which extends axially. A voice coil bobbin (16) is disposed between the projections (21) and the inside wall of the annular plate (14). <IMAGE>
IPC 1-7
IPC 8 full level
H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 31/00 (2006.01)
CPC (source: EP)
H04R 9/045 (2013.01); H04R 31/00 (2013.01); H04R 31/006 (2013.01); H04R 2499/13 (2013.01)
Citation (search report)
- [YA] US 4115667 A 19780919 - BABB BURTON A
- [Y] US 3983337 A 19760928 - BABB BURTON A
- [A] DE 3046551 A1 19820722 - ISOPHON WERKE GMBH [DE]
- [A] WO 9117636 A1 19911114 - GRUNBERG ROBERT MICHAEL [AU]
- [A] US 4531025 A 19850723 - DANLEY THOMAS J [US], et al
- [A] PATENT ABSTRACTS OF JAPAN vol. 004, no. 117 (E - 022)<599> 20 August 1980 (1980-08-20)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0624048 A1 19941109; JP 3199336 B2 20010820; JP H06319196 A 19941115
DOCDB simple family (application)
EP 94107075 A 19940505; JP 10541193 A 19930506