To obtain high positional accuracy relative to a fixed contact point on a circuit board when a disk spring is installed thereon, reduce defects, and facilitate assembly.
In this push-button switch, a contact-point member 20 having a disk spring 22 and a key-top sheet 30 of an elastic rubber body having a key-top part 32 connected with continuity to a support part 31 via a thin-walled part 33 are installed on a circuit board 10 provided with fixed contact points 11, and the disk spring 22 and the key-top sheet 32 are positioned above the fixed contact points 11, and pressing of the key-top part 32 causes a press part 34 of the key-top part 32 to press a top part of the disk spring 22, which in turn is caused to make contact with the fixed contact points 11. The contact- point member 20 is formed by molding an insulating elastomer having hardness of 30 to 80° H into a hold sheet 21 of 0. 2 mm to 1.0 mm in thickness with an opening 21a having a cutout 21b all over the peripheral edge thereof and formed correspondently to the fixed contact points 11, and by mounting the disk spring 22 made of metal on the opening 21a of the hold sheet 21 by fitting the peripheral edge thereof into the cutout 21b.
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