| 摘要 |
A tricycle includes left and right front wheel support members which rotatably support left and right front wheels, respectively, and which are disposed on laterally opposite sides of a handle post and pivotally supported on left and right leg members which are supported by the handle post , a steering shaft which is connected to the front wheel support members to steer the front wheels in. response to the turning operation of the steering shaft:, and a driven wheel supported at a rear portion of a vehicle body frame structure. In this tricycle, a banking travel is possible, leading to an enhanced steering travelability. The handle post and the left leg member are connected to each other through a pair of left upper and lower links to form a left parallel link arrangement, while the handle post and the right leg member are connected to each other through a pair of right upper and. lower links to form a right parallel link arrangement. The left and right parallel link arrangements are formed laterally symmetrically with each other with respect to the handle post.
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