Patent ID: 6768075
Filing Date: 2004-07-27
Classification: H01H

Abstract:
A membrane switch comprising:(a) a first base element made of an electrical insulation elastic material, said first base element having a first conductor including at least one press contact area and at least one permanent contact area on a surface of said first base element; (b) a second base element made of an electrical insulation material, said second base element having a second conductor and a third conductor on a surface facing said surface of said first base element, said second conductor including at least one press contact area in accordance with the arrangement of said at least one press contact area in said first conductor, and said third conductor including at least one permanent contact area in accordance with the arrangement of said at least one permanent contact area in said first conductor, said second base element further having a connector section for connecting said second and third conductors to an external circuit; and (c) a spacer made of an electrical insulation material, said spacer being interposed between said first base element and said second element, said spacer having through holes at positions corresponding to those both in said at least one press contact area and said at least one permanent contact area of said first and second base elements.