| 摘要 |
PURPOSE: The tube the major support role of bicycle is divided into 3 steps and it gets folded in the each other opposed side direction. The volume occupied in the state where bicycle gets folded can be reduced. CONSTITUTION: A foldable bicycle comprises a front tube(111), a middle tube(112), and a rear tube(113). It is rotatable, the front tube supports a handle shaft(120) combined with a handle(130) of the top end portion and nose wheel of the bottom part. Front-end is hinge-coupled in the back-end of the front tube and the middle tube is rotatable about the front tube to one side direction. The rear tube supports a back wheel(160). The rear tube is rotatable the other side face in which front-end is hinge-coupled in the back-end of the middle tube and which is opposed about the middle tube to the front tube.
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