| 摘要 |
PROBLEM TO BE SOLVED: To provide an earplug for a hearing aid, with which earwax is hardly put into a sound discharging port, by providing a cover, which has an opening part in the direction of the side face, so as to cover the sound discharging port. SOLUTION: A shell 1 for incorporating a microphone, a speaker or an amplifier and an inserting part 2 to be inserted into the external auditory miatus are integrally provided. On the top end side of this inserting part 2, a sound discharging port 21 is opened through the thickness of the wall surface in the top end direction of the sound discharge part 20. In order to hardly put earwax into this sound discharging port 21, a cover 5 in the shape of circular dome is provided while having two opening parts 50 in the side face direction so as to surround the sound discharging port 21. In this case, the cover 5 the opening parts 50 are arbitrarily formed and the number of opening parts 50 is not limited to two but it is enough to provide one opening part at least. Thus, since the cover 5 is provided so as to cover the sound discharging port 21 on the wall surface toward the top end of the inserting part 2, earwax to be infiltrated from the fore side into the sound discharging port 21 is blocked by that cover 5. |
