| 摘要 |
The framework of a folding shopping trolley has two lateral tubular members 6 each supported on a wheel and connected to a central tubular member 2 by articulated parallelogram links 5. A slide 3 on the central member 2 is connected to the lateral members 6 by articulated struts 7 to extend and collapse the frame. In the extended and collapsed conditions, the side is locked to the central member 2 by a locking screw 1. <IMAGE> |
