BOBBIN AND REINFORCEMENT METHOD OF BOBBIN

摘要

PROBLEM TO BE SOLVED: To provide a reinforcement method of bobbin and also to provide a bobbin which has improved failures that a reinforcement string wound around the bobbin is entangled or cut with operations of a speaker. SOLUTION: After the string 23a is wound around the predetermined area of the bobbin 22 except for a wire winding part 21 wound by a voice coil 21a, a thermosetting film 23b is wound around the part wound by the string 23a and is then thermally welded. COPYRIGHT: (C)2005,JPO&NCIPI