| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wheeled carry-on which does not require much labor even when it is carried and moved on the surface of a snowy or muddy road.SOLUTION: Lest caster 5 portions of a wheeled carry-on 1 bite into a road surface, sled-like structures 10 are attached, and housed sleds 6 are set to the lower surfaces of casters depending on the state of the road surface.</p> |
