| 摘要 |
PROBLEM TO BE SOLVED: To provide a folding bicycle capable of starting the folding operation in a single operation even with a minor force and of retaining the shape in the running condition certainly. SOLUTION: Rear wheel supporting frames 2 and 3 pivoted upon being split in two portions by a rotary shaft 5 as capable of being folded any as desired are made practicable to be fixed in the running form between the forefront 17 of the rear wheel supporting frames 2 and 3 and a crossing rotary shaft 15. In this folding bicycle, a fixation device 4 is structured so that an axial direction pressing force to the rotary shaft 5 is given by turning a folding lever 21 on a single operation system, wherein the rotary shaft 5 as a folding point to divide the frames 2 and 3 into the running form and folding form can itself be used as fixation device 4, which allows simplification of the structure, and because the folding lever 21 on the signal operation system can be moved with a minor force, the folding operation can be executed simply even by women or children.
|
