| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a tricycle capable of ensuring turning stability. <P>SOLUTION: A front steering head 31 is a portion formed on a front side distal end portion of a main frame 3, and an insertion hole 31a fitted with a lower end portion of the steering pipe 53 is recessedly provided. A front wheel mechanism 5 is steered making a steering center line L1, i.e., a center line of the insertion hole 31a as a center. The steering center line L1 is raised/inclined in a direction left from a road surface S as it advances from right front wheel RF and left front wheel LF sides toward a rear wheel R side in the state that the right front wheel RF, the left front wheel LF and the rear wheel R are ground-contacted with the road surface S. Thereby, accompanying with increase of a steering angle of the front wheel mechanism 5, the main frame 3 can be inclined to the same direction side as a steering direction of the front wheel mechanism 5. As a result, center of gravity of the tricycle 100 is moved to an inner side in a turning direction and turning stability of the tricycle 100 can be ensured. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
