| 摘要 |
PURPOSE:To input sounds easily and to improve operability by uniting a metallic temple with a cover and storing a microphone and a hearing aid circuit unit on a row of the inside of a bow. CONSTITUTION:The bow body 1 molded with a resin material or the like has the hearing air circuit unit 2 and a fitting part 4 of the microphone 3 at its front inside and also has a bone conduction vibrator 5 and a buttery storing part 6 at its neck inside. The unit 2 is constituted by fitting a variable condencer 21, a switch 22 and hearing aid circuit constituting parts to a base plate 23. The periphery of the microphone 3 is coverted with an elastic material such as rubber. The cover 7 is prepared to cover the fitting part 4 and has a temple 8 fitting part 71 made of a metallic material. The cover 7 and the temple 8 are united with the bow 1 by a screw 9 inserted from the bow side. Said constitution makes it possible to input sounds easily and improve the operability. |
