| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound switch that is easy to make thin and compact and can be made easily waterproofing. SOLUTION: The dome switch comprises a top sheet which has a protruded part of a dome-shape that protrudes on the outside surface and can be flipped over toward the rear face and has an electrode on the rear face, and a circuit which has a contact point on which the electrode provided on the rear face of the protruded part contacts when the dome-shape protruded part is flipped over. And it comprises a single switch part in which another dome-shape protruded part is provided around the central part of the above dome-shape protruded part and when the protruded part is pushed down, the above protruded part is first flipped over, and the electrodes provided on the rear face side of the sheet at the vicinity of the protruded periphery and the contact points of the above circuit body contact, then, the electrode provided on the rear face side around the central part of the dome-shape protruded part and the contact point of the above circuit body contact. |
