Patent ID: 7764936

Claim:
An electronic device comprising: an upper case having a side surface and an upper surface provided with a through hole; a lower case having, on the periphery thereof, a side wall extending in the direction of the upper case and covering a lower surface of the upper case, a top portion of the side wall comprising a convex-shaped surface; a substantially flat-shaped operation body having a convex portion housed in the upper case, the convex portion protruding from the through hole; a circuit board housed between the operation body and the lower case; and a switch mounted on the circuit board and below the convex portion; wherein the convex-shaped surface of the side wall extends above the circuit board and elastically presses the operation body upward against the upper case, and the switch is sealed in a space formed by the circuit board, the side wall and the operation body, and the operation body has a portion operable to contact the switch to depress the switch, and a space is provided between an outer circumferential surface of the side wall of the lower case and an inner circumferential surface of the side surface of the upper case, and substantially no portion of the operation body extends into the space between the outer circumferential surface of the side wall of the lower case and the inner circumferential surface of the side surface of the upper case.