US Patent 8490248 Hinge and an electronic device with the same

A hinge is mounted between a cover and a body of an electronic device and has an eccentric sleeve and a resisting assembly abutting against each other. When the cover is pivoted, the eccentric sleeve is rotated as well. Because the eccentric sleeve has sectors with varied radiuses, the resisting assembly is compressed to conduct various resisting forces when the eccentric sleeve is rotated. When the cover is opened to a normal visual angle, the hinge provides a constant largest torque. Therefore, the cover is held at the normal visual angle even though the user hits the touch panel on the cover.