| 摘要 |
PURPOSE: An earphone for code twist prevention is provided to prevent a thin and long cord from becoming entangled by combining left and right side receivers through mutual combination of a concavo-convex part. CONSTITUTION: An earphone comprises left and right side receivers(10,30), codes(51,53), and a connection jack. The left and right side receivers are formed into a symmetrical structure. The left and right side receivers comprises housings(11,31), insertion parts(13,33), and concavo-convex parts(15,35). The cord is inserted in one side of the housing. A speaker part is electrically connected to each code of the inner side of the housing. A pair of codes is respectively connected to the housing. The connection jack is inserted into a connector for the earphone of all kinds of acoustic-apparatuses. A signal which is transmitted from the acoustic-apparatus is delivered to the left and right side receivers. |
