the stationary member 52 each flat surface 5213 extends from the corresponding limiting surface 5211 5211 u2032 and is parallel to the inner surface 524 of the stationary member 52 each slope 5212 5212 u2032 extends from a corresponding limiting surface 5211 5211 u2032 and converges to the inner surface 524 of the stationary member 52 the washer assembly 60 is mounted around the shaft 12 of the pintle 10 and has an elastic member 61 a fastener 62 and a washer 63 the elastic member 61 is mounted around the shaft 12 of the pintle 10 adjacent to the stationary member 52 of the compression assembly 50 to provide an elastic force the fastener 62 is mounted securely on the distal end of the shaft 12 of the pintle 10 and may be a nut engaging the threaded segment 11 of the shaft 12 of the pintle 10 the washer 63 is mounted securely around the shaft 12 of the pintle 10 and may be mounted between the elastic member 61 and the fastener 62 to reduce abrasion between them a hinge assembly in accordance with the present invention is mounted between a cover 71 and a base 72 of an electronic device wherein the rotating bracket 20 is securely attached to the cover 71 and the mounting bracket 40 is securely attached to the base 72 the cover 71 can be pivotally rotated to the base 72 when the inclined surface 221 of the latching portion 22 abuts against the latching arm 43 the cover 71 can be secured to the base 72 to open the cover.