US Patent 11788330 Hinge structure and electronic device including the same

A hinge structure is provided. The hinge structure includes a fixed structure including a first guide rail and a second guide rail, a center of an arc of the first guide rail is a first axis of rotation parallel to an axial direction and a center of an arc of the second guide rail is a second axis of rotation parallel to the axial direction, a first rotary structure including a first guide portion accommodated in the first guide rail and a first helical groove extending around and along the first axis of rotation, a second rotary structure including a second guide portion accommodated in the second guide rail and a second helical groove extending around and along the second axis of rotation, and a sliding structure including a first guide protrusion accommodated in the first helical groove and a second guide protrusion accommodated in the second helical groove.