Patent ID: 6173065
Filing Date: 2001-01-09
Classification: H04R

Abstract:
A speaker comprising a cone rack, said cone rack having a stepped portion on the inside, a back member fastened to said cone rack at a bottom side, said back member having a center mounting hole, a first corrugated damping device and a second corrugated damping device mounted on said stepped portion inside said cone rack, a sound coil suspended inside said cone rack below said first corrugated damping device and said second corrugated damping device, and a paper cone mounted in said cone rack above said first corrugated damping device and said second corrugated damping device, an improvement comprising a spacer ring supported between said first corrugated damping device and said second corrugated damping device, a third corrugated damping device suspending in said paper cone and peripherally disposed in contact with said paper cone on the inside, a disk fixedly provided at the center of said third corrugated damping device, a fixed mounting rod perpendicularly and downwardly extended from said disk and inserted through a hole at the center of said second corrugated damping device and a hole at the center said first corrugated damping device and plugged into the center mounting hole at said back member, said mounting rod having a bottom screw hole, and a screw mounted in the center mounting hole and threaded into the bottom screw hole at said mounting rod to fix said mounting rod to said back member.