Hinge for a foldable device

A hinge structure to be used in a portable electronic device, making it possible to turn a first housing part and a second housing part of the device in relation to an axis of rotation of the hinge structure, the hinge structure comprising at least a torsion spring, which has a first end and a second end and a longitudinal axis, and the first end of the spring is connected to a first hinge half and the second end of the spring is connected to a second hinge half in such a manner that a connection point of the second end of the spring is able to rotate around the axis of the spring.

A method for forming a foldable device, which makes it possible to rotate a first housing part and a second housing part of the device in relation to an axis of rotation of a hinge structure, in which method the first housing part is connected to the second housing part by a hinge element in such a way that the hinge element is connected by a first hinge half to the first housing part and by a second hinge half to the second housing part, the hinge halves being arranged to be movable in relation to each other by means of a pivot placed on an axis of rotation, wherein the hinge structure comprises a torsion spring, which has a first end and a second end and a longitudinal axis, and the first end of the spring is connected to the first hinge half and the second end of the spring is connected to the second hinge half in such a manner that a connection point of the second end of the spring is able to rotate around the axis of the spring.