Collapsible bicycle

A collapsible bicycle assembly comprising:

• a forward frame part,
• a rearward frame part operable to support a rear bicycle wheel,
• a pivotal connection with a transverse pivot axis between the rearward frame part and the forward frame part,
• a steering tube rotatably supported at the forward frame part,
• a longitudinal control arm connecting the steering tube and forward frame part,
• a handle bar fixed to the steering tube,
• a pair of fork legs operable to rotatably support a bicycle front wheel, and
• a fork bridge connecting a lower section of the steering tube to the fork legs with the fork legs offset longitudinally a predetermined distance from the steering tube with formation of an L-shaped offset of the fork tube with respect to the steering tube so that, at a predetermined turning position of the handle bar and steering tube, the fork legs are moved laterally of the forward frame part to accommodate collapsing movement of the bicycle rearward frame part to a collapsed stowage position laterally adjacent the fork legs.

A collapsible bicycle assembly comprising;

• a forward frame part,
• a steering tube rotatably supported at the forward frame part,
• a handle bar fixed to the steering tube,
• a pair of fork legs operable to rotatably support a bicycle front wheel,
• a fork bridge connecting the steering tube to the fork legs with the fork legs offset longitudinally a predetermined distance from the steering tube so that, at a predetermined turning position of the handle bar and steering tube, the fork legs are moved laterally of the forward frame part to accommodate collapsing movement of a bicycle rearward frame part to a collapsed stowage position,
• a rearward frame part operable to support a rear bicycle wheel, and
• a pivotal connection between the rearward frame part to the forward frame part, said pivotal connection having a pivot axis extending parallel to and spaced from a rotational axis of the rear wheel when in use with said rear wheel supported in said rearward frame part,
• wherein said predetermined distance facilitates movement of said fork legs sufficiently laterally of said forward frame part so that said rearward part can be moved to a position where said rear wheel abuts with and is aligned with said forward frame part when said rearward frame part is moved to a collapsed stowage position, and
• wherein the frame and the steering device are connected with one another by a longitudinal control arm.

A collapsible bicycle assembly comprising;

• a forward frame part,
• a steering tube rotatably supported at the forward frame part,
• a handle bar fixed to the steering tube,
• a pair of fork legs operable to rotatably support a bicycle front wheel,
• a fork bridge connecting the steering tube to the fork legs with the fork legs offset longitudinally a predetermined distance from the steering tube so that, at a predetermined turning position of the handle bar and steering tube, the fork legs are moved laterally of the forward frame part to accommodate collapsing movement of a bicycle rearward frame part to a collapsed stowage position,
• a rearward frame part operable to support a rear bicycle wheel, and
• a connection between the rearward frame part to the forward frame part operable to permit movement of the rearward frame part to a collapsed stowage position about a transverse axis,
• wherein said predetermined distance facilitates movement of said fork legs sufficiently laterally of said forward frame part so that said rearward part is moved to a position where said rear wheel abuts with and is aligned with said forward frame part when said rearward frame part is moved to the collapsed stowage position, and
• wherein the frame and the steering device are connected with one another by a longitudinal control arm.