Patent ID: 8244122

Claim:
An electronic device comprising: a body having an opening part defined therein, a cover member which opens and closes the opening part of the body, a pivotally supporting mechanism which pivotally supports a base end part of the cover member at a position adjacent to the opening part of the body, and a cam mechanism provided to opposed parts of the body and the cover member, wherein the cam mechanism comprises a slidable contact surface which maintains a fixed relative position to the body and sliding part which maintains a fixed relative position to the cover member and relatively slides on the slidable contact surface along a predetermined cam curve as the cover member is opened and closed, and the predetermined cam curve is defined about a pivot of the pivotally supporting mechanism and so as to make the cover member move in either direction of two opposite directions along the pivot of the pivotally supporting mechanism in a process of closing the cover member, the opening part of the body has an entrance having a generally rectangular form with two sides extending in parallel with each other, either one side of the two sides is defined by a metal edge while the other side is defined by a resin edge, and the predetermined cam curve is defined so as to make the cover member gradually move away from the metal edge in the process of closing the cover member.