Patent ID: 7484266

Claim:
A hinge apparatus, comprising: a hinge adapted for producing and releasing an elastic force by rotating; and a damper arranged coaxially with the hinge, including a damping shell having a shell body, a cover board formed at one end of the shell body, an axial hole being opened in the center of the cover board, a damping body received in the shell body of the damping shell, the damping body having a base portion and a column portion extending from one end of the base portion, the column portion extending outside the damping shell through the axial hole, a plurality of rotatable pieces and a plurality of limiting pieces received in the shell body of the damping shell, the rotatable pieces and the limiting pieces being alternately disposed on the column portion of the damping body, the rotatable pieces engaging with the column portion so as to rotate together with the damping body, the limiting pieces being fixed to the damping shell, damping oil being filled between the adjacent limiting pieces and the rotatable pieces, a hermetic ring disposed on the base portion of the damping body and pressed against the shell body, and a rotatable body rotating together with the hinge and selectively engaging with the damping body for pushing the damping body to rotate when the elastic force of the hinge is being released.