Patent ID: 7513010
Filing Date: 2009-04-07
Classification: E05D,E05Y,Y10T

Abstract:
1. A hinge assembly, comprising: a fixing seat having at least one block; a control member having at least one receiving groove, the at least one block portion being received in the at least one receiving groove; a first spring providing on elastic force to the control member; a follower element; a rotating element, the rotating element including a rotating element hole having an inner circumferential wall, the inner circumferential wall defining an inner screw thread; a second spring providing an elastic force to make the rotating element and the follower element resist each other, wherein one of the rotating element and the follower element includes a pair of protrusion having a hemispherical surface, the other of the rotating element and the follower element has a pair of recesses, each protrusion is releasably received in a corresponding one of the recesses; and a shaft, the fixing seat, the control member, the first spring, the follower element, the rotating element and the second spring being placed around the shaft, the shaft defining an outer screw thread, the outer screw thread engaging with the inner screw thread of the rotating element.