Patent ID: 8199465

Claim:
A collapsible device comprising: a cover comprising a display on a top of the cover; a base defining a groove extending through front and rear sides of the base, the groove defining a keyboard region adjacent to the front side, and a fixing slot adjacent to the rear side; and a hinge connected between a bottom of the cover and the fixing slot, the hinge comprises: a rotating member fixed to the cover, a first locking block and a second locking block opposite to the first locking block extend from the rotating member, the rotating member defines a through hole, opposite fixing ribs protruding inwards from the through hole from an inner wall bounding the though hole, a connecting member fixed to the rotating member, the connecting member comprises a shaft portion defining two fixing slots in the circumferential surface of the shaft portion, a fixing member sleeved on the connecting member, the fixing member comprises a helical sliding surface, and an interfering member fixed to the fixing member, the interfering member comprises a helical engaging surface, opposite to the helical sliding surface of the fixing member, wherein, the first and second locking blocks are operable of sliding on the helical engaging surface and the helical sliding surface, correspondingly; and wherein each of the fixing ribs of the rotating member are engaged in a respective fixing slot of the two fixing slots of the connecting member; wherein the cover is rotatably received in the groove via the hinge, the cover is operable of rotating relative to the display around the hinge, to cover or expose the keyboard region.