Stop lamp switch and method for attaching the same

摘要

A stop lamp switch of the present invention includes; an operating shaft having one end face being outwardly projected from a switch case body, the end face abutting on a brake pedal of a vehicle; an actuator moving within the switch case body to separate a movable contact from a fixed contact; an engaging spring attached to the other end of the actuator so as to be engaged with a concave-convex locking portion provided on the operating shaft, and a spring regulating member for engaging both free ends of the engaging spring with engaging step portions provided to the spring regulating member in a freely engageable/disengageable manner while the engaging spring is being in a spread state.