| 摘要 |
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 bicycle also being convertible into a three-wheeled shopping cart. The frame is designed with a low profile that is substantially the same 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 to substantially within the confines outlined by the folded frame. In the shopping cart mode, the partially folded frame is held in a "V" configuration with the two bicycle wheels parallel, and an auxiliary wheel assembly that normally is stored in the mid-portion of the frame is swung out to form a 3-wheel cart with a carrying deck. The auxiliary wheel also is usable to facilitate rolling of the bicycle in the fully folded condition, in which the sections of the folded frame are latched together. |
