| 摘要 |
<p>The portable bicycle is disclosed, which can make it possible to minimize the length of a bicycle by separating a guide sliding tube and a bicycle driving shaft and reconnecting the same for reducing the entire length of a bicycle in such a manner that a steering handle is folded in half by forming a small size gear train at an intermediate portion of a bicycle for thereby reducing the width of a bicycle, and the entire width of a bicycle can be further reduced by separating a pedal crank in such a manner that a pedal crank of a bicycle can be lifted or lowered with the aid of an elastic force of a plate spring or a coil spring about an engaging pin, so that a bicycle can be easily carried and stored.</p> |
