Linear actuator

A linear actuator including

• an inner core;
• a pair of flat springs provided so as to interpose the inner core from front and rear of the inner core in an axial direction and an outer core that is provided outside the inner core in a radial direction so as to be disposed on the same axial center as the inner core while being supported by the pair of flat springs,
• permanent magnets being formed at one of the inner core and the outer core, and magnetic pole portions being formed at the other of the inner core and the outer core to face the permanent magnets with predetermined gaps formed therebetween,
• wherein spacers are respectively provided between the inner core and the flat springs,
• abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat spring adjacent to the spacers in the axial direction, and
• at least an engagement portion is configured by a recess formed at one of the facing surfaces configuring the abutting portions and a protrusion formed at the other of the facing surfaces, and
• by this engagement portion, relative position in a circumferential direction of the inner core, the spacer and the flat springs is decided so as not to cause a positional deviation in the circumferential direction.