| 摘要 |
A load handling trolley (10) of the type that normally runs in a channel led track comprising an elongate load engager (12) having a load receiving top (14) and depending side walls (16, 18) and which is raisable and lowerable relative to at least one bogie assembly (20) via ramp and roller means (38, 40) when the engager and the bogie assembly arc caused to move longitudinally relative to each other, wherein the bogie assembly has at least one side wall (22, 24) with a projection (52) above a top edge of a major portion of its length, whereby positive retention between the load engager and the bogie assembly is still made when a bottom edge of a load engager side wall is raised to the height of said top edge of the bogie side wall and wherein the projection is accommodated by the top of the load engager when in the lowered position. |
