| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bone conduction earphone which has superior reproducibility of audio information, is easily inserted into the hollow of the cavity of the concha, and has superior support stability after wearing. <P>SOLUTION: The bone conduction earphone includes a bone conduction vibration part 2, a front-side projection part 3, and a back-side projection part 4, and a length-directional one-end side 2a of the bone conduction vibration part 2 is inserted into the hollow of the cavity 12 of the concha at first. While the bone conduction earphone is rotated and put on in the hollow of the cavity 12 of the concha so that a width-directional lower part 2e of the bone conduction vibration part 2 comes into contact with a bottom part 12e of the hollow of the cavity 12 of the concha, the length-directional one-end side 2a of the bone conduction vibration part 2 is pressed against a tragus 13 and a wall part 12d of the hollow of the cavity 12 of the concha, a length-directional other-end side 2b of the bone conduction vibration part 2 is pressed against an antitragus 14 and a wall part 12d of the hollow of the cavity 12 of the concha, the front-side projection part 3 is pressed against the tragus 13, and the back-side projection part 4 is pressed against a periphery of the wall part 12d of the hollow of the cavity 12 of the concha nearby an entrance into an external auditory meatus 15. <P>COPYRIGHT: (C)2013,JPO&INPIT |
