Push-button switch, keytop, and method of manufacturing the keytop.

摘要

The keytop of a push-button switch includes a keytop portion situated on the top side of a resin film at a prescribed position thereof, and a retaining portion situated on the underside of the resin film at the prescribed position. The keytop portion and retaining portion are formed into a unitary body by resin-molding through a hole provided in the resin film, and the resin film is sandwiched between the keytop portion and the retaining portion. In another embodiment, the retaining portion is loop-shaped and is formed into a unitary body with the keytop portion by resin-molding through a plurality of holes provided in the resin film along the loop-shaped circumference of the retaining portion. The resin film is sandwiched in a water-tight state between the keytop portion and the loop-shaped retaining portion. <IMAGE> <IMAGE>