| 摘要 |
<p>The ski training and exercise equipment comprises a scooter with a single front wheel under steering forks and twin rear wheels for support. The rear wheels are mounted on slides along each side of the support platform and are fitted non return ratchets to run forwards only. The wheels are also linked to foot supports (18, 19) so that a reciprocating action of the feet propells the vehicle forwards. The vehicle has leaf spring supports for the wheels to ensure constant contact with the ground.</p> |
