| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vibratory device and so on which uses no spring, causes fewer faults and has a long lifetime.SOLUTION: A resonance device is formed by arranging a movable iron core 2 movable in its axial direction within a ring magnet 4 for resonance with the movable iron core 2, and a solenoid(s) 12 (and 13) for vibration impartment is arranged on one side (or both sides) of the ring magnet 4 in the moving direction of the movable iron core 2, so as to configure a vibration device. The solenoid(s) 12 (and 13) for vibration impartment is magnetized at a specified phase in a short time in every vibration period.</p> |
