Patent ID: 8056186

Claim:
A hinge assembly, comprising: a cam having a cam surface; a follower having a latching cam surface engaging with the cam surface and at least one projection opposite to the latching cam surface; a first spring biasing the cam surface of the cam and the latching cam surface of the follower to resist against each other; a control member having at least one protrusion, the protrusion slidably resisting the projection of the follower; a second spring; a barrel defining a barrel hole, the cam, the follower and the first spring placed around the barrel; a press rod slidably received in the barrel hole of the barrel, the control member fixed to the press rod to slide together; and wherein a user pressing the press rod slides the control member; the protrusion of the control member interacts with the projection to rotate the follower, the second spring providing an elastic force to return the control member to an original position, whereby the cam surface of the cam rotates relative to the latching cam surface of the follower.