Patent ID: 6771155
Filing Date: 2004-08-03
Classification: H01H,H03K

Abstract:
A magnetic switch, comprising:a switch case defining a chamber and including positioning portions and guide portions; a movable member provided inside the chamber, said movable member including a storing chamber and protruding portions, the protruding portions coacting with said guide portions so that said movable member is movable in a linear direction; a base member closing one end of said switch case and including a concave portion opening into said chamber; a spring element provided inside the chamber and having a first end positioned in the storing chamber of said movable member and a second end positioned in the concave portion of said base member, the spring element applying a biasing to said movable member so that an end portion of said movable member projects outwardly of said switch case; a magnet secured to said movable member; a hole IC arranged within said switch case by said positioning portions in the vicinity of said movable member for sensing the position of said magnet, wherein, when the end portion of said movable member projects outwardly of said switch case the combination of the magnet and the hole IC outputs one of an OFF signal or an ON signal for the magnetic switch, and when the end portion of said movable member is depressed, the change in position of the magnet relative to the hole IC changes the output from the magnetic switch to the other one of an OFF signal and an ON signal; and wherein said end portion of said movable member extends from and is integral with part of a top end section of said movable member so that part of said top end section of said movable member contacts the switch case to retain said movable member in said switch case when said end portion projects outwardly of said switch case.