Patent ID: 8528928

Claim:
A folding bicycle comprising: a front frame provided with a front wheel and a handle; a center frame provided with pedals and a saddle; a rear frame provided with a rear wheel; a hinge device to enable the front frame, the center frame and the rear frame to pivot about one another, to be foldable with respect to one another, the hinge device comprising a front hinge member provided at the front frame, a center hinge member provided at the center frame, and a rear hinge member provided at the rear frame; and a hinge shaft configured to support a front hub, which is provided at a center of the front hinge member, a center hub, which is provided at a center of the center hinge member, and a rear hub, which is provided at a center of the rear hinge member, the hinge shaft passing through the front hub, the center hub and the rear hub, wherein the hinge shaft enables the supporting on at least two positions that are spaced apart from each other in a longitudinal direction of the hinge shaft.