Patent ID: 6043441
Filing Date: 2000-03-28
Classification: H01H

Abstract:
A membrane switch device comprising:an insulating upper sheet;an insulating lower sheet disposed in an opposed relation to said upper sheet;a plurality of contact portions formed on each of said upper and lower sheets in such a manner that the contact portions formed on the upper sheet and the contact portions formed on the lower sheet come to be opposed to each other; anda plurality of mounting holes formed in each of said upper and lower sheets in such a manner that the mounting holes formed in the upper sheet and the mounting holes formed in the lower sheet come to be opposed to each other,wherein a first insulating resist layer is formed on at least one of said upper and lower sheets except the portions where said contact portions are positioned, a second insulating resist layer is formed on said first insulating resist layer at positions near said mounting holes so as to surround the whole circumference of each of said mounting holes, and said upper and lower sheets are pasted together by said first and second insulating resist layers.