| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a push-button switch which is based on an insulating board and is thin-type, and of which, even when an insulator and a cover sheet are fitted tightly to a switch board under heated and pressurized condition, the switch board is prevented from warp, the switch contact part has improved contact reliability, and the contact terminal has improved solderability to a circuit board. SOLUTION: The structure comprises the switch board 1 on which fixed contacts 1a and 1b are arranged, the insulator 2 with a storage part 2a which is bonded to the switch board through an adhesive layer, a dome-shaped movable contact 3 which is stored in the storage part 2a and is connected/separated to/from the fixed contacts 1a and 1b, a cover sheet 4 which is fixed onto the movable contact 3 and the insulator 2. An insulating layer 5, which is made of the same material as the insulator 2, is formed on the back face of the switch board 1 through the adhesive layer.
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