| 摘要 |
<p>This invention relates to a foldable bicycle, including a front frame tube (1), a column tube (2) for receiving the steering handle, a main frame (3), a seat tube (4), a pair of cranks and pedals and some folding joints (5) arranged at the folding points of the frame. The main frame is cut off at the folding point, the two cut ends of the said frame are coupled with each other to form a convex seat at the other side. Both the front and rear forks are in the form of having only one fork blade and are at the same side. The front wheel and the rear wheel are conformable and convex toward the fork blades and the outer diameter of the former is corresponding to the inner diameter of the latter. Such crank is cut into two portions, the end portion, which is pivotally connected with the pedal, and the main portion which is pivotally connected with the said end portion through a bolt.</p> |
