摘要 |
<p>a warehouse order make-up trolley has a frame (30) moving on wheels (31) and a load platform (32). The trolley frame has a rear extension (24) with a scooter (20) platform (21) and wheels (19, 22). The scooter frame is spring loaded to rise and fall under load. The scooter wheels are only in contact with the ground when the scooter platform is loaded.</p> |