| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear actuator in which proper vibration can be generated from a movable body with a small number of components.SOLUTION: In a linear actuator 1, a movable body 6 is provided with one columnar permanent magnet 53, and a coil 55 is wound around a coil bobbin 3 surrounding the permanent magnet 53 on the radial outside in a stator 2. Since a movable body 6 is provided with a first core 71 and a second core 72, on the opposite sides of the permanent magnet 53 in the axial direction L, linkage flux density of the coil 55 is high. A spring member 8 is connected with the coil bobbin 3, and the movable body 6 is supported by the spring member 8 on the radial outside of the permanent magnet 53. Consequently, the movable body 6 is supported by the spring member 8 in stable state.SELECTED DRAWING: Figure 3 |
