Patent ID: 6993146
Filing Date: 2006-01-31
Classification: H04R

Abstract:
1. A speaker comprising: a magnetic circuit composed of a pot yoke, a magnet, and a pole piece; a conical shaped diaphragm defining an outer periphery and an inner periphery, having a surround half-rolled and fixedly disposed at the outer periphery, and having a voice coil bobbin provided with a voice coil would thereon and fixedly disposed at the inner periphery; a frame having the magnetic circuit fixedly disposed at its central opening; a spacer ring provided separate from the frame, the spacer ring disposed within an outer circumference of the frame, and having a surround edge receiving portion adapted to fixedly receive an entire outer edge of the surround at an upper end portion thereof; and a spider connected between the voice coil bobbin and a lower end portion of the spacer ring.