Patent ID: 6604271
Filing Date: 2003-08-12
Classification: H04R,Y10T

Abstract:
A process for producing a conductive damper for use in a speaker, in the process a workpiece of the conductive damper in which knitted tinsel wires are integrated with a sheet-shaped workpiece is set between top and bottom molds, on a surface of each of which molds a plurality of corrugations are formed concentrically, then the workpiece of the conductive damper is pressed by the top and bottom molds so as to be molded in a damper-shape, the process comprising:a first step for setting the workpiece of the conductive damper on the bottom mold; a second step for moving the top mold in a direction toward the bottom mold so as to mold one corrugation or a plurality of corrugations at an inner part of the workpiece of the conductive damper; and a third step for further moving the top mold in the direction toward the bottom mold so as to mold one corrugation or a plurality of corrugations at an outer part of the workpiece of the conductive damper, wherein the third step is repeatedly performed so that the workpiece of the conductive damper is molded in the damper-shape.