Patent ID: 6919520

Claim:
A stoplight switch comprising: a cylindrical case made of insulating resin having an open upper surface; a sliding body housed in said case in a manner vertically movable; a switch contact for making electric connection and disconnection by vertical movement of said sliding body; an action rod having a bottom end that is inserted into said sliding body; a cover for covering the opening of said case having a through-hole through which said action rod projects upward; a roughly U-shaped engagement spring supported by said sliding body; and a spacer for keeping said engagement spring in an expanded state in a manner such that the pressing section thereof extends out from the bottom surface or side surface of said case and a contact section thereof comes into contact with an end portion of said U-shaped engagement spring, wherein the end portion of said engagement spring is detached from said contact section and closed by the upward movement of said spacer so that said action rod can be secured relative to said sliding body.