| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem wherein a conventional bicycle must be constantly pedaled while running, precluding the reduction of the load on the legs for constantly pedaling.SOLUTION: A plate-like bar 11 with a rolling shaft 12 being mounted on its end and a crank 13 with a groove 14 formed in its end are faced to each other by a series of operations from a rotary shaft 1 to a rotary shaft 15, the rolling shaft 12 is fitted to the groove 14, and moved on a side face of the groove 14 in a rolling manner. Thus, the rolling shaft can be rotated by the temporary lever action. |
