| 摘要 |
A tricycle 20 has a spine frame 22, supported by a rear wheel 34 and a pair of steerable front wheels 36, and supporting a recumbent seat 42 pivotably attached at its rear. A pedal boom 44 extends forwardly of the spine 26 and supports a pedal crank assembly 46. The front wheels 36 each support a lateral arm 28 with the front wheel 36 pivotably attached at the distal end and an angular projection 80 attached at the proximal end. A pivot 78 connects each angular projection 80 to the spine 26, allowing the lateral arms 28 and attached front wheels 36 to fold to a stowed position alongside the spine 26 (figure 10). Another pivot 84 connects the boom 44 to the spine 26, allowing the boom 44 fold back to a stowed position against the spine 26. In the travel position, clamping means 98 arrest the angular projections 80, and can arrest the boom 44 and seat 42. The rear wheel 34 and frame 58 may also be foldable. |
