Patent ID: 8126188
Filing Date: 2012-02-28
Classification: H04R,Y10T

Abstract:
1. A loudspeaker comprising: a magnetic circuit having a magnetic gap, a resin-made frame joined with the magnetic circuit, a diaphragm having a voice coil to be driven by a magnetic field generated by the magnetic gap joined to a central portion of the diaphragm with a peripheral border thereof joined to an outer circumference of the frame, wherein: the magnetic circuit has a yoke formed into the shape of a rectangular dish, having a continuous wall extending between adjacent sides of the yoke and a magnet joined inside the yoke, the yoke has a tongue-like flange projecting outwardly from a position a predetermined distance below the top surface of the yoke, the flange is provided at a corner of the yoke and is symmetrically provided on the long side of the yoke, and the yoke is insert-molded to the frame in a manner covering the flange.