| 摘要 |
A vibration actuator capable of vibrating plural rotors by single vibration means. When a composite vibrator (2) is driven to generate a composite vibration where different vibrations are composed, a first stator (3) and a second stator (4) vibrate to form elliptic motion at each corner (8, 9) of the first stator (3) and a second stator (4). This causes a first rotor (A) pressed and made to be in contact with the corner (8) of the first stator (3) and a second rotor (B) pressed and made to be in contact with the corner (9) of the second stator (4) are simultaneously and individually rotated. Also, selecting a vibration mode of the different vibrations that form the composite vibration enables the two rotors (A, B) to be rotated in the same direction or in the opposite directions. ® KIPO & WIPO 2009
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