Bicycle portable as a bag

Claim 1

A portable bicycle which comprises: an elongated first casing having a front end and a rear end; a front wheel received in a fork pivotable about a first horizontal pivot axis on said front end whereby said front wheel is receivable in part in said first casing and projects therefrom above and below said first casing in a folded condition of said bicycle; a steering post with a handlebar mounted in said front end and coupled with said fork for steering same in an erect condition of the bicycle, said steering post being foldable to lie generally along the length of said first casing in said folded condition; a second elongated casing of substantially equal length as said first casing and having a front end pivotally connected to said rear end of said first casing by an axis disposed near the bottom of said first casing whereby said second casing is swingable into a position below said first casing in said folded condition and receives a portion of said wheel projecting below said first casing; a pedal assembly mounted close to said front end of said second casing; a rear wheel assembly mounted on a rear end of said second casing and pivotally connected thereto so as to be swingable to introduce a rear wheel of said rear wheel assembly into said second casing in said folded condition; means in said second casing coupling said assemblies for rotating said rear wheel upon actuation of said pedal assembly in said erect condition; a third elongated casing pivotally connected to said rear end of said first casing at an upper point thereon whereby said third casing is swingable from an upright position in said erect condition in which said third casing is supported on said second casing into a position in which said third casing lies along said first casing and receives a portion of said front wheel projecting upwardly from said first casing in said folded condition; a seat post carrying a saddle mounted on said third casing and extendable therefrom in said erect condition; and at least one spring loaded pin for releasably locking one of said rear wheel assembly and said third casing to said second casing in said erect condition, said casings forming a rectangular housing enclosing said wheels, said steering post, said handlebar and said seat post and saddle in said folded condition.