Patent ID: 7211760

Claim:
A membrane switch comprising: a first sheet; at least one fixed contact point provided on a surface of said first sheet; a second sheet opposed to said first sheet; a spacer which is provided between the first sheet and the second sheet, and which has a hole that exposes the fixed contact point; at least one flexible movable contact point which: (i) is provided on a surface of said second sheet so as to be located entirely within the hole and so as to be opposed to said fixed contact point via a space, (ii) is movable toward and away from said fixed contact point, and (iii) includes a push portion which is pushed to contact said fixed contact point; and at least one insulator provided at one of: (i) on said at least one flexible movable contact point at a location that does not overlap with said push portion of said flexible movable contact point, and (ii) on said at least one fixed contact point at a location opposed to said location that does not overlap with said push portion, wherein no insulator is provided in a location coinciding with said push portion.