| 摘要 |
PURPOSE:To prevent sound-electric signal conversion from being spoiled, by dividing a receptacle part of a handset into two attachable-detachable parts, and thus coupling the coupler with the handset excellently by one touch. CONSTITUTION:Receptacle parts 9 of an acoustic coupler each consists of an upper cover 10 and a bottom cover 11, and the both are coupled through a hinge part 12 in a free opening and closing state. Receiving rubber 15 made of an elastic material is stuck to the internal surface of the upper cover 10, and the transmission or reception part 3 of a handset 13 is covered with the upper cover 10 and bottom cover 11 to be engaged with the coupler excellently. The output signal of the coupler is supplied through a signal line 14 to equipment which is not shown in the figure. |
