| 摘要 |
A scooter comprises a flexible attachment means which includes a longitudinal rod secured to a foot board of the scooter, a joint member having a front portion pivotally connected to the longitudinal rod for turning about a vertical axis, a U-shaped wheel carrying member connected to a rear portion of the joint member, a restraining bar transversely attached to the front portion of the joint member and two helical springs each of which has one end connected to the front end of the longitudinal rod and the other end connected to one of the ends of the restraining bar. The restraining bar and the springs provides a degree of controlling effect for limiting the turning movement of the rear wheel.
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