EP 0912072 B1 20050720 - Concentric tube suspension system for loudspeakers
Title (en)
Concentric tube suspension system for loudspeakers
Title (de)
Aufhängunsgssystem aus konzentrischen Rohren für Lautsprecher
Title (fr)
Système de suspension à tube concentrique pour haut-parleurs
Publication
Application
Priority
EP 97308543 A 19971027
Abstract (en)
[origin: EP0912072A1] A concentric tube suspension system and loudspeaker system of the moving coil type, including a diaphragm supported by a frame, a voice coil including a former and voice coil winding supported by the former, and a suspension system for stabilizing and centering the voice coil in a magnetic gap while it is linearly displaced by an electromagnetic motor. The suspension system generally comprises a tubular stabilizer attached to the bottom surface of the diaphragm so as to concentrically straddle the voice coil and electromagnetic motor, and a lower corrugated suspension attached at one end to the frame and at the other end to the lower end of the stabilizer, wherein the stabilizer and lower suspension provide a centering force below the traditional neck joint location on the voice coil.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H04R 9/043 (2013.01); H04R 9/06 (2013.01); H04R 9/045 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0912072 A1 19990428; EP 0912072 B1 20050720; DE 69733758 D1 20050825; DE 69733758 T2 20060330
DOCDB simple family (application)
EP 97308543 A 19971027; DE 69733758 T 19971027