| 摘要 |
The technical field of the present invention is designed to use a front wheel of a bicycle with one or three wheels, wherein the front wheel of a general bicycle is formed with one wheel where a person who does not know how to ride a bicycle has difficulties in maintaining balance and generate propulsion. The present invention installs a supporter on a right and a left upper end of an existing front wheel, fixates a wheel on a lower side of the supporter, and produces a joint capable of being folded back and forth on a lower side of a handlebar and frame. When the joint is unfolded, the bicycle is used as a two-wheel bicycle. If the joint is folded, the three wheels are on the ground. Accordingly, the present invention relates to a multi-purpose and a multi-function bicycle capable of helping even a beginner ride a bicycle. In a case of an existing two-wheel bicycle, it is difficult for the person who does not know how to ride. In the case of the bicycle of the present invention, a person who knows how to use the bicycle uses the bicycle as a two-wheel bicycle, but a person who does not know how to ride uses the bicycle as a three-wheel bicycle by folding the wheel to use the three wheels. As such, children or the elderly and the infirm can stably use the bicycle, and the bicycle can be used as a walking aid for the elder and the infirm as the bicycle is propelled with a correct posture if the elder and the infirm stand in front of the bicycle and push it. |
