| 摘要 |
<p>In an ultrasonic vibration device (1) for hairstyling, which has a vibration element (10) for generating ultrasonic vibrations, and a horn (2) for amplifying vibrations generated by and transmitted from the vibration element. The horn (2) has a vibration entrance surface (21) of an oblong rectangular shape to which the vibration element (10) is connected and through which the vibrations generated by the vibration element enters into the horn, and a vibration exit surface (22) through which the vibrations propagated in the horn exits. The horn (2) has a cross sectional shape in a lateral direction of the oblong rectangular shape so that a width in the lateral direction becomes gradually narrower from the vibration entrance surface (21) to the vibration exit surface (22), and the vibration exit surface (22) has at least a convex portion, such as a hemi-cylindrical shape.</p> |
