| 摘要 |
PURPOSE: An earphone is provided to prevent a line from becoming entangled by bending the line at only the wrinkle part. CONSTITUTION: A coating line(10) made of rubber surrounds an electric line. The length of a coating line is controlled according to the flow of a fine magnetic field. A wrinkle part(20) is formed on the coating line and is bended with a preset space. An earphone(30) is connected to the coating line. |
