| 摘要 |
The device comprises a guide rail (27) attached on each longitudinal side of the trolley's underside, and each rail has a recess (29). Rollers (31,32) are mounted on a support on the frame (16) of the loading unit which when the trolley moves into the loading unit support the guide rails so that the wheels of the trolley are clear of the ground. The first roller (32) is located at a level (37) above the two other rollers (31) so that the contact point (41) between the recess and first roller extends above the underside (28) of the rail. |
