LINEAR ACTUATOR

摘要

PROBLEM TO BE SOLVED: To provide a linear actuator bringing a portion moving in association with the movement of an output shaft into contact with a specified portion in a housing to determine an origin of the position of the output shaft with high accuracy by specifying the contact state as a reference.

SOLUTION: This linear actuator includes: a male screw section 41 screwed with a female screw section 34 provided inside a rotor unit 30; the output shaft 42 which is provided with the male screw section 41 and performs a linear motion by converting a rotary motion of the rotor unit 30 into a linear motion; a stop pin 44 provided in the output shaft 42; and a positioning member 46 which is fixed to the housing 2, regulates the movement of the output shaft 42 in a shaft direction by contacting with the stop pin 44 and determines the origin of the position of the output shaft 42.

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