Patent ID: 7565718
Filing Date: 2009-07-28
Classification: E05D,E05F,E05Y,H04M,Y10T

Abstract:
1. A hinge assembly, comprising: a button having at least one pushing portion; a fixing seat having at least one block, each pushing portion of the button extending through the fixing seat for allowing the button to be movably positioned to the fixing seat; a control member having at least one receiving groove, the at least one block being received in the at least one receiving groove, the at least one pushing portion resisting the control member, the fixing seat releasably engaging with the control member; a first spring member providing an elastic force to the control member a follower having a first end and an opposite second end, the first end having a cam surface, the control member engaged with the follower; a cam having a latching cam surface, the cam including a cam hole having an inner circumferential wall, the inner circumferential wall defining an inner screw thread; a second spring member providing an elastic force for urging the follower to thereby make the cam surface of the follower and the latching cam surface of the cam resist each other; a plurality of rolling elements disposed between the second spring member and the follower; and a shaft defining an outer screw thread, the outer screw thread engaging with the inner screw thread of the cam.