Patent ID: 6795563
Filing Date: 2004-09-21
Classification: H04R

Abstract:
A speaker comprising:a cylindrical frame (2) provided with a yoke, a permanent magnet, a vibrating plate and a voice coil secured to the vibrating plate, the cylindrical frame having a pair of holes (2d) each of which is formed in an axial direction of the frame and opened to an underside of the frame, a pair of lead plates (9) embedded in the frame, an end of each of the lead plates being connected to an end of the voice coil, and the other end (9a) of the lead plate being exposed in the hole, a terminal connecting device (10) provided in each of the holes, wherein the terminal connecting device comprises a cylindrical case (11) made of metal and secured to an inside wall of the hole by a securing means, the cylindrical case has an upper closed end portion and a lower end opening, and a flange (11a) formed at a lower portion thereof, a connecting rod (12) made of metal and having a head (12a) slidably engaged with an inside wall of the cylindrical case, a coil spring (13) provided between the upper closed end and the head (12a) so that the connecting rod is projected from the lower end opening and stopped by engagement of head with a stopper edge (11c), the flange is pressed against an underside of the frame, thereby pressing the upper closed end portion of the cylindrical case against the underside of the other end (9a) of the lead plate.