US Patent 10343704 Foldable stroller frame

A foldable stroller frame comprising a lower frame. The lower frame has a front frame section and a rear frame section which are pivotal relative to one another. The lower frame also has a hinge device linking the front frame section to the rear frame section. The hinge device has at least two parts pivotally coupled together and rotatable about a movable axis of rotation between a deployed state and a collapsed state. The hinge device also has a handle arranged along the axis of rotation for grasping by a user to enable the hinge device to be operated.