Patent ID: 7353568
Filing Date: 2008-04-08
Classification: H04M,Y10T

Abstract:
1. A hinge assembly for interconnecting a flip cover and a main body of a foldable electronic device, the hinge assembly comprising: a rotating cam having an inner screw thread and a first cam end at one end thereof; a shaft having an outer screw thread at one end thereof, the outer screw thread being engaged with the inner screw thread of the rotating cam; a driven cam having a second cam end at one end thereof, the driven cam configured for coupling with the flip cover, the second cam end engaging with the first cam end of the rotating cam; a first elastic element; a second elastic element; a sliding element; a locking element configured for coupling with the main body; a button; and a sleeve; wherein the shaft extends through the rotating cam, the driven cam, the sleeve, the first elastic element, the sliding element, and the locking element in that order, the first elastic element extends through the sliding element, the sleeve slidably engages with the driven cam, the driven cam is partly received in the sleeve, one end of the first elastic element abuts against the driven cam, the other end of the first elastic element urges on the locking element, the other end of the shaft is secured to the locking element, the button slidably engages with the locking element, the sliding element is received in the locking element, one end of the second elastic element abuts against the locking element, the other end of the second elastic element urges on the sliding element for locking the sliding element with the sleeve and urges on the button for restoring the button when pressed, the button is configured for sliding the sliding element relative to the locking element so as to unlock the sliding element from the sleeve, and the first elastic element is configured for urging the driven cam combined with the rotating member and the sleeve to rotate relative to the shaft via the engagement between the inner screw thread of the rotating cam and the outer screw thread of the shaft.