| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pressure-sensitive switch that is used for an operating unit of various kinds of electronic equipment and configured to moderate variation of the resistance value to press force.SOLUTION: A resistance film 25 formed on the lower surface of a base sheet 2 is configured by successively coating a low resistance material layer 22, an intermediate resistance material layer 23 and a high resistance material layer in this order from the lower surface of the base sheet 2. The high resistance material layer 24 is exposed in a circular shape at the center position of the lower surface of the resistance film 25, and the intermediate resistance material layer 23 is exposed in an annular shape around the outer peripheral portion thereof. Accordingly, by pressing a press member 26, the high resistance material layer 24 first come into contact with fixed contact points 12A, 12B, and by further pressing the press member 26, the intermediate resistance material layer 23 starts to come into contact with the fixed contact points 12A, 12B.</p> |
