| 摘要 |
PURPOSE: An apparatus for preventing an earphone cable from being twisted is provided to prevent a cable from being twisted by restricting the individual movement of a plug and a speaker comprising an earphone. CONSTITUTION: An earphone is composed of a speaker(S), an earphone plug(P), and a cable(C). A permanent magnet(1) is arranged at the earphone plug and a metal piece(2) is attached to or separated from the permanent magnetic while being arranged at the speaker. The permanent magnet installed at an outer circumference of the plug pulls the metal piece installed at the speaker through manpower. The cable is prevented from being twisted by restricting the individual movement of the speaker and the plug. The permanent magnet is symmetrically installed at the plug or the outer circumference of a connection tube body in a predetermined shape. |
