| 摘要 |
<p>A two-wheel trailer/trolley cart has a load-carrying frame (4) pivotally-mounted on the rotational axis of the wheels (2) within a larger frame (8) that is also pivotally mounted on that axis. The relative angular disposition between the two frames (4,8), both of inverted-U configuration, is set by varying the length to which the inner tube (12) of a telescopic draw bar (11) is extended between them. The tube (12) interconnects the frames (4,8) through a device (14) that allows adjustment, with subsequent clamped setting, of the extension of the tube (12) between that in which the frame (4) is horizontal and that in which it is in a folded condition inclined co-planar with the frame (8). <IMAGE></p> |
