| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration actuator which suppresses sounds occurring during vibration despite its simple structure that does not have a guide shaft.SOLUTION: A vibration actuator 1 includes: a bobbin 6 around which a coil 2 is wound and having a vibration space M1 formed along a uniaxial direction; an outer frame body 7 which covers the coil 2 and extends the vibration space M1 in the uniaxial direction; a movable element 5 including a magnet 3 which vibrates in the bobbin 6 and a weight body 4 which is connected with one end side of the magnet 3 when viewed in the uniaxial direction and vibrates in the outer frame body 7; and an elastic member 8 elastically supporting uniaxial direction vibration of the movable element 5. A resin layer 11 is fixed to an outer peripheral surface 40A of the wight body 4 which faces an inner surface 7A of the outer frame body 7, and an oil layer 12 is disposed between the resin layer 11 and the inner surface 7A of the outer frame body 7.SELECTED DRAWING: Figure 1 |
