| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ear unit for stable fitting in an ear. <P>SOLUTION: An ear unit 10 is shaped as a decremental curve. The distance between ends 5, 8 of the decremental curve is approximately equal to the distance between a first cavity formed under a tragus 4 of an ear and a second cavity covered by a lower node 15 of an antihelix of the ear. An upper part of the curve projects to underneath a flap 2 covering a lower part of the second cavity. The ear unit 10 has a curvature providing attachment such that the curvature follows an inner surface of an ear concha 22 to provide a contact surface. <P>COPYRIGHT: (C)2012,JPO&INPIT |
