Patent ID: 8308178

Claim:
A collapsible bicycle, having a frame, which is collapsible in its plane, wherein the frame comprises: a head tube having a collapsible bicycle front side end in which a front wheel fork, which receives a front wheel, is mounted; a seat stay having an end, which receives a seat tube; a lever being articulated at a first articulation point, being at a collapsible bicycle rear side end of the head tube, and at a second articulation point, being at the end of the seat stay, which receives the seat tube, wherein the lever in relation to the seat stay being arranged to the collapsible bicycle front side in a riding position of the collapsible bicycle; a down tube being articulated at a third articulation point, being at the collapsible bicycle front side end of the head tube, and at a fourth articulation point, being at an end of the seat stay, which is opposing the end of the seat tube; wherein the first, second, third and fourth articulation points are arranged to each other in such a way, that for moving the collapsible bicycle from the riding position into a sliding position or from the sliding position into the riding position, respectively, the end of the seat stay, which receives the seat tube, being shiftable in a direction towards the head tube or in a direction away from the head tube, respectively; a rear wheel fork, which receives a rear wheel, articulated at a fifth articulation point at a collapsible bicycle rear side end of the down tube; and a rear wheel stay articulated at a sixth articulation point at the collapsible bicycle rear side end of the head tube and at a seventh articulation point at the rear wheel fork, wherein the first, second, third, fourth, fifth, sixth and seventh articulation points are arranged in such a way, that the rear wheel shifts by shifting the end of the seat stay receiving the seat tube in the direction towards the head tube or in the direction away from the head tube, respectively, in a direction towards the front wheel or in a direction away from the front wheel, respectively.