Portable bicycle

Claim 2

A portable bicycle, a front wheel assembly, an envelope support rigidly affixed to the front wheel assembly, a bottom assemblY removably attached to the envelope support and a seat assembly pivotally joined to the bottom assembly, and means attached to the bottom tube assembly removably connecting the envelope support thereto causing the front wheel assembly to become removably affixed to the bottom tube assembly in spaced substantially parallel relation thereto.

Claim 3

A portable bicycle including a front wheel assembly having front forks, telescoping tubes slidably disposed within the front forks, clamping means permitting the locking of the telescopic tubes within the front forks, handlebars movably affixed to the telescopic tubes, means to lock the handlebars in position upon the telescopic tubes, a head tube, a steering column movably disposed within said head tube, steering flanges slidably disposed upon and below said head tube and rigidly affixed to the steering column and to the front forks, a plurality of braces attached to the head tube and extending rearwardly therefrom, an envelope support rigidly affixed to said braces and disposed substantially vertically and parallel to the head tube.

Claim 4

A portable bicycle including a front wheel assembly having front forks, telescoping tubes slidably disposed within the front forks, clamping means permitting the locking of the telescopic tubes within the front forks, handlebars movably affixed to the telescopic tubes, means to lock the handlebars in position upon the telescopic tubes, a head tube, a steering column movably disposed within said head tube, steering flanges slidably disposed upon and below said head tube and rigidly affixed to the steering column and to the front forks, a plurality of braces attached to the head tube and extending rearwardly therefrom, an envelope support rigidly affixed to said braces and disposed substantially vertically and parallel to the head tube.

Claim 5

A portable bicycle as described in claim 2, including a bottom tube assembly having an upper bottom tubular support member, a plurality of lower bottom tubular support members and means affixed to and between said upper tubular support member and bottom tubular support members holding the upper bottom tubular support member and lower bottom tubular support members in fixed spaced relation to each other, a support plate substantially rectangular in form and having a narrowed lower portion adapted to be slidably disposed within the envelope support rigidly affixed to the forward end of the upper bottom tubular support member and lower bottom tubular support members, a support plate substantially rectangular in form and having a narrowed end portion suitable to be slidably disposed within the envelope support rigidly substantially horizontally affixed to the upper tubular support member, and locking means suitable to hold the front wheel assembly in spaced relation to the bottom tube assembly and substantially parallel thereto.

Claim 6

A portable bicycle as described in claim 3, including a seat tube assembly having a seat tube, means pivotally affixing said seat tube to the bottom tube assembly, a saddle pin slidably disposed within the seat tube, a spring-type latch permitting the height adjustment of the saddle pin, a saddle rigidly affixed to the top of the saddle pin, a bracket integrally affixed to the seat tube and extending rearwardly therefrom, back stays, telescopic pins slidably disposed within the back stays, pivotal means rotatably affixing the back stays to the bottom tube assembly, a pivot bolt rigidly affixed to the telescopic pins and rotatably disposed within the bracket, adjustable locking means disposed to and between the telescopic pins, a spacer bar rigidly affixed to and between the back stays, latching means affixed to the locking means and removably disposed about the spacer bar, and latching means suitable for latching the seat tube assembly to the bottom tube assembly in its compacted form.

Claim 7

A portable bicycle of substantially U-shaped structure including a front wheel assembly, a bottom assembly, coupling means disposed between the front wheel assembly and bottom assembly, a seat assembly pivotally affixed to the bottom assembly, means securing the seat assembly to the bottom assembly, including locking means adapted to lock the front wheel assembly to the bottom assembly in substantially parallel spaced relation to each other, said front wheel assembly including spaced forks, and telescopic tubes and handlebars removably affixed to said forks.

Claim 8

A portable bicycle of substantially U-shaped structure including a front wheel assembly, a bottom assembly, coupling means disposed between the front wheel assembly and bottom assembly, a seat assembly pivotally affixed to the bottom assembly, means securing the seat assembly to the bottom assembly, including locking means adapted to lock the front wheel assembly to the bottom assembly in substantially parallel spaced relation to each other, said front wheel assembly including spaced forks, and telescopic tubes and handlebars removably affixed to said forks.

Claim 9

A portable bicycle including a bottom assembly, a seat assembly pivotally affixed to the bottom assembly at horizontally spaced points, a front wheel assembly including braces attached to the lower portion thereof and extending rearwardly therefrom, an envelope support affixed thereto and to the ends of the braces and disposed Substantially vertically, a bottom assembly including a support plate affixed to the front end thereof and disposed substantially vertically within the envelope support and in slidable relation thereto, and means pivotally attaching the seat assembly to the bottom assembly.

Claim 10

A portable bicycle including a bottom assembly, a seat assembly pivotally affixed to the bottom assembly at horizontally spaced points, a front wheel assembly including braces attached to the lower portion thereof and extending rearwardly therefrom, an envelope support affixed thereto and to the ends of the braces and disposed Substantially vertically, a bottom assembly including a support plate affixed to the front end thereof and disposed substantially vertically within the envelope support and in slidable relation thereto, and means pivotally attaching the seat assembly to the bottom assembly.