| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bicycle riding with two small children, attaining the enhancement stability and safety of a vehicle body by devising the sitting position of the small child and a seat mounting method. Ž<P>SOLUTION: A seat mounting sub-frame is arranged on the front side of a head tube and a small child seat is mounted to the seat mounting sub-frame. Further, the other small child seat is mounted to a position close to the front wheel of a down tube for connecting a seat tube and the head tube. The small child seat is made into a structure that it is mounted to a position within upper and lower 30 cm on a virtual line for connecting the central axes of the front wheel and the rear wheel, thereby the problem is solved. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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