| 摘要 |
PROBLEM TO BE SOLVED: To simplify a manufacturing process by forming grooves along the outer circumference of a projecting part on a sheet part. SOLUTION: This dome switch comprises a dome switch body 3 comprising a sheet part 1 formed into the shape of a sheet, and a projecting part 2 projecting into the shape of a dome, and a sheet-shaped button 5 formed into the shape of a sheet, contacted with a top part 2a of the projecting part 2 at its back surface, and having an information input key 4 for displaying a position of the top part 2a of the projecting part 2 on its surface. The dome switch body 3 is made of polyethylene terephthalate, and has the flexibility, and grooves 6 along the outer circumference of the projecting part 2 are formed on the sheet part 1. An electrode 7 made of carbon, silver carbon, or the like is printed on a rear surface of the top part 2a of the projecting part 2. The sheet-shaped button 5 is made of polyethylene terephthalate similarly as the dome switch body 3, and formed integrally with the sheet part 1 of the dome switch 3 through plural spacers 8 among grooves 6 formed on the sheet part 1 of the dome switch 3.
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