| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vibration actuator which can improve its performance and reduce its size with use of a simple structure. SOLUTION: An energization direction of a single driving coil 12 is changed so that an interaction in magnetic flux between ring-shaped permanent magnets 15 and 16 causes a movable iron core 23 to reciprocally move in a direction of a winding center axis of the driving coil 12. In addition, the driving coil 12 for vibrating the movable iron core 23 is provided only one, whereby, even when the number of winding turns of the driving coil in order to improve the performance, increase in the overall size of the device can be suppressed.</p> |
