| 摘要 |
<p>A hand-pulling travel suitcase, includes a stair-climbing mechanism with several rollers (1) matched with grounding wheels (7). The stair-climbing mechanism includes a roller part and a recess part (3) with a fixed protecting cover (4). The roller part has an inline roller case (2). The recess part (3) has the fixed protecting cover (4) on the case surface, which wraps part of the case corner or corner edge.</p> |
