| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration actuator where lubrication of a contact part between a vibrator and a mover is achieved using a simple structure.SOLUTION: A stator 2 of a vibration actuator 101 has a recess part 2c in which it is possible to reserve a lubricant. Also, in the recess part 2c, columnar supplying bodies 8a and 8b are contained which are formed using a porous material that is hard and has continuous pores. An outer peripheral surface 8a1 of the supplying body 8a and an outer peripheral surface 8b1 of the supplying body 8b respectively contact an outer peripheral surface 1aa of a first rotor member 1a of a rotor 1 and an outer peripheral surface 1ba of a second rotor member 1b of the rotor 1. By means of rotation of the supplying bodies 8a and 8b in accordance with rotation of the rotor 1, the lubricant is supplied to the outer peripheral surface 1aa of the first rotor member 1a and the outer peripheral surface 1ba of the second rotor member 1b. |
