| 摘要 |
A multidirectional operation switch includes an insulation case having a recess having a bottom, an outer fixed contact provided on the bottom, plural inner fixed contacts provided on the bottom, a conductive cover for covering the recess of the case, a movable contact made of resilient conductive plate in the recess of the case and having a dome shape including a concave surface, a convex surface opposite to the concave surface, and a peripheral edge, plural first terminals provided on the case and electrically connected to the outer fixed contact and the plurality of inner fixed contacts, respectively, and a second terminal for allowing the cover to be electrically connect the case to an outside of the switch. Each of the inner fixed contacts departs from a predetermined point on the bottom by a predetermined distance shorter than a distance between the predetermined point and the outer fixed contact. The cover has a hole formed therein over the predetermined point. The peripheral edge of the movable contact is mounted on the outer fixed contact. The concave surface faces the inner fixed contacts, and has a deepest point located over the predetermined point. The operation body includes an operation shaft inserted into the hole of the cover and electrically insulated from the cover, and a conductive flange bonded to the operation shaft. The flange is located between the cover and the convex surface of the movable contact and over the fixed contacts. This switch is small and thin.
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