THIN AND MULTI-FUNCTIONAL VIBRATION ACTUATOR

摘要

PROBLEM TO BE SOLVED: To provide a multi-functional vibration actuator capable of suppressing a decrease in vibration having a thin body easily attainable by virtue of its simple structure. SOLUTION: The vibration actuator comprised of a magnetic circuit consisting of a pole piece, a magnet, and a yoke and a suspension that faces and supports the magnetic circuit is characterized in that the suspension is made from a magnetic body so as to form a magnetic gap between the end part of its inner peripheral side wall and the end part of the pole piece, and thereby the reduction of the thickness of the magnet in the magnetic circuit is avoided enabling the generation of a vibration enough to be detectable by a human body in spite of its thin structure. COPYRIGHT: (C)2007,JPO&INPIT