Patent ID: 7757350

Claim:
A hinge structure with position-locking engagement means comprising: a bracket, said bracket having a horizontal base panel and a side panel perpendicularly downwardly extending from one end of said horizontal base panel, said side panel comprising a pivot hole, a recessed positioning hole, and a first arched limiter groove disposed adjacent to one side of said recessed positioning hole and sloping in one direction; and a first pivot set, said first pivot set comprising a pivot shaft, a locating plate, a holding down spring plate, and a spacer, the pivot shaft of said first pivot set being inserted in proper order through the pivot hole of said side panel of said bracket, said locating plate, said holding down spring plate and said spacer and then pivotally fastened to a support, said locating plate having a ball hole corresponding to the recessed positioning hole of said side panel of said bracket and a ball rotatably mounted in said ball hole and selectively engageable into the recessed positioning hole and the first arched limiter groove of said side panel of said bracket, said holding down spring plate having an actuation portion directly pressing said ball and forcing said ball in the recessed positioning hole and said first arched limiter groove of said side panel of said bracket selectively, said spacer defining a gap between said holding down spring plate and said support; wherein said side panel of said bracket and said holding down spring plate directly engages opposing surfaces of said locating plate and holds said ball in said ball hole of said locating plate; wherein when said bracket is turned relative to said support, said recessed positioning hole and said first arched limiter groove are moved with said bracket relative to said ball, and said actuation portion of said holding down spring plate is forced by said ball to deform and the gap defined by said spacer between said holding down spring plate and said support accommodates deformation of the actuation portion of said holding down spring plate.