초록 ▼

A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durabl

A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse, along with the pedals, to substantially within the confines outlined by the folded frame. Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding. Optional features include an enclosed front carrying compartment, a bracing cable permitting the seat post to be made of lighter materials, a rear carrying rack that extends the flat and low profile across the rear frame section, and a shopping cart mode in which the partially folded frame is held with the two bicycle wheels parallel, and an auxiliary wheel assembly stored in the mid-portion of the frame is swung out to form a 3-wheel cart with a carrying deck.

대표청구항 ▼

In a foldable and portable bicycle having a frame with front and rear ends, an improved longitudinally extendable and collapsible seat assembly comprising: a plurality of elongated, longitudinally telescoping seat post sections including a base section mounted on said frame in an upwardly and rearwa

In a foldable and portable bicycle having a frame with front and rear ends, an improved longitudinally extendable and collapsible seat assembly comprising: a plurality of elongated, longitudinally telescoping seat post sections including a base section mounted on said frame in an upwardly and rearwardly inclined position, and at least a second section telescoped into said base section to be extended and collapsed longitudinally relative thereto; means on said base section for latching said second section in a longitudinally extended position; and a seat on the upper end of said seat post to be raised and lowered by said second section; said seat post sections being of non-circular cross-section and having rearwardly and downwardly facing sides positioned to be nested together under the force applied by a weight on said seat.