| 摘要 |
PROBLEM TO BE SOLVED: To provide a membrane switch that can be suppressed from turning ON unexpectedly.SOLUTION: A membrane switch 1 is such that an inner edge part 521 of a lower surface 523 in plan view of a rubber dome 5 is positioned more on the side of a center C of an opening part 20 than an edge part 431 of an upper adhesive layer 43 positioned at a periphery of an opening part 20 of a spacer 2, an upper gap 203 formed as the edge part 431 is positioned outside the opening part 20 is provided at an overlap part between the spacer 2 and an upper sheet 4 in a region that the lower surface 523 occupies in plan view, and an upper thickness increasing member 45 is provided at the upper gap 203.SELECTED DRAWING: Figure 1 |
