| 摘要 |
<p>A ski-bob has a central frame with a saddle between two side-runners (13, 12) . The frame front has a steering bar and shaft within a steering head (22) linked to a steering front runner (14). The front runner is esp. detachable from the steering head for transport purposes. The steering head is also the anchorage point for the side frames (19, 20) and side-runners (12, 13).</p> |
