| 摘要 |
An arrangement for supporting lifting hooks for a mechanical handling device is described. Forks (not shown) are hooked over a rail 42 and extend down to rest against a lower bar 40 . For each fork 20 , the hook is located between the plates 48 or the plates 54 , which form two carriages 46 A, 46 B. These can slide along the rail 42 , drawing the forks with them. Movement of the carriages 46 A, 46 B is coordinated by racks 62 A, 62 B which extend from respective carriages 46 A, 46 B and mesh with a pinion wheel 64 . Thus, the forks can be maintained symmetrically disposed about the centre line of the lifting apparatus, thereby improving safety of operation. |
