Patent ID: 8735748

Claim:
A keyboard structure comprising: a plurality of key switches each having a key top having a sheet-shaped member that includes a protrusion protruding from an outer circumferential end of a body portion of the key top, the protrusion being integrally formed with the body portion of the key top, the protrusion forming an entire outer circumference of the key top, and a contact point that forms a switch closed state by pressing of the key top; and a frame member disposed between the key switches and having a flange portion, the frame member covering a space between the protrusion of one of the key switches and the protrusion of another of the key switches, the key top of the one key switch being adjacent to the key top of the another key switch, the flange portion directly contacting the protrusion of the one key switch when the key top of the one key switch is not pressed by a user, and the flange portion being free of contact with the protrusion of the one key switch when the key top of the one key switch is pressed by the user, and the sheet-shaped members of the key tops being independently provided from each other.