| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a portable bicycle which facilitates a folding or assembling operation, which makes a folded state compact, which can be carried while being rolled, which can be easily turned even in a narrow place, and which can be relatively inexpensively manufactured.SOLUTION: Front and rear wheels are engaged and united with each other in positions in which axles of the front and rear wheels are slightly offset, and only the one wheel is brought into contact with ground and rolled. Additionally, in a method for engaging the front and rear wheels with each other, front and rear wheel parts can be freely separated from each other. The separated front and rear wheels are lined in an almost parallel state, and engaged and united together by inserting engagement parts in such a manner that they are displaced in a direction almost perpendicular to the axles.</p> |
