US Patent 12135589 Double-axis soft hinge mechanism and foldable device having same

A foldable device may include a foldable layer and a hinge mechanism. The hinge mechanism may include at least one synchronizing module, at least one torsion module, and a cover module. The at least one synchronizing module may include a synchronizing gear assembly including a first linking gear in meshed engagement with a first rotating link, a second linking gear in meshed engagement with a second rotating link, and at least one intermediate gear in meshed engagement with the first linking gear and the second linking gear. The first rotating link may be coupled to a first housing of a computing device and the second rotating link may be coupled to a second housing of the computing device. The meshed engagement of the first and second rotating links may provide of synchronized, symmetric movement of the first and second housings about a central axis of the computing device.