Patent ID: 7059789

Claim:
A key structure, comprising: a substrate; a key cover, comprising a first flange and a second flange defining a receiving space and an opening offset with respect to the center of the receiving space; a first rod, comprising a first end connecting the key cover and a second end connecting the substrate, wherein the first end comprises a protrusion; and a resilient member disposed between the substrate and the key cover; wherein the first flange is longer and closer to the second end than the second flange, and the protrusion is rotatably fitted in the receiving space without rectilinear movement, and the opening is offset with respect to the center of the receiving space in a direction away from the second end such that a contact area between the first flange and the protrusion is greater than a contact area between the second flange and the protrusion when the protrusion is received in the receiving space.