Linear actuator and boring device

摘要

A linear actuator having a linearly extending slider disposed in a body casing, a plurality of magnets fixed to the slider along the axial direction of the slider, and a plurality of coils supported by the body casing so as to surround the slider to which the magnets are fixed, the linear actuator being structured so that a slider shifts in the axial direction relative to the body casing due to interaction between energized coils and magnets, the linear actuator further comprising a plurality of flat springs each supporting one end or the other end of the slider in the axial direction, each flat spring being elastically deformed relative to the axial direction of the slider.

主权项

1. A linear actuator comprising:
a slider provided in a body casing with linearly extending therein; at least one magnet fixed to the slider along the axial direction of the slider; and at least one coil supported by the body casing so as to surround the slider to which said at least one magnet is fixed; the slider shifting relative to the body casing in the axial direction due to interaction between said at least one coil to which electric current is applied and said at least one magnet; the linear actuator further comprising a plurality of elastic members, each supporting one end or the other end of the slider in the axial direction; and the elastic members elastically deforming due to a shift of the slider in the axial direction.