| 摘要 |
PROBLEM TO BE SOLVED: To realize a key top having a circuit board with water tight structure, not requiring high precision molding of a case and a cover, which can be assembled easily. SOLUTION: On the key top of the push switch, comprising an insulation sheet on which at least two wiring patterns to be connected to each other are formed, and a switch formed on the insulation sheet connecting the wiring patterns to each other by being pushed, constructed by pinching the insulation sheet including the switch, at least one face of the insulation sheet including the switch is water tightly covered by an insulation film. COPYRIGHT: (C)2005,JPO&NCIPI
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