Patent ID: 7225506

Claim:
An electronic device, comprising an electronic device body; a cover; a hinge, coupling the cover at one end thereof with a pivotal shaft, and coupling the electronic device body with the other end thereof by inserting into the electronic device body; a brake apparatus between the hinge and the cover and, comprising at least one interfering structure and at least one elastic interfering rib, the interfering structure being located at a surface of the cover, the elastic interfering rib being shaped as a cantilever beam having a fixed end, and an interfering end opposite the fixed end, the fixed end being mounted at the end of the hinge having the pivotal shaft, and when an angle between the electronic device body and the cover exceeds a predetermined interfering angle, the interfering end interferes with the corresponding interfering structure for preventing the cover to impact on the electronic device body; and a force-dispersing mechanism between the hinge and the cover and, comprising an L-shaped brake, a cover plate, and a brake arm, the L-shaped brake being located at one side of the hinge, a first contact point and a second contact point being located respectively on a surface of the L-shaped brake facing the cover, at least one slot positioned in the cover, the cover plate covering the slot, a hook located on an inside surface of the cover plate for locking in the corresponding slot to further connect the cover plate and the cover, when the cover is lifted to the predetermined interfering angle, the first contact point and the second contact point contact the surface of the cover plate to disperse a stress resulting in the hinge and the cover, when the first contact point and the second contact point contact the cover plate, the hook then engaging in the slot for dispersing stress between the cover plate and the cover, and the hinge disperses further stress between the hinge and the cover, the brake arm being located on the end of the hinge mounting the pivotal shaft, the brake arm contacting the cover so as to disperse a force resulting in the hinge and the cover when the cover is lifted to the predetermined safety angle.