| 摘要 |
For use with a fork lift truck having a pair of vertically spaced apart forks which are raised or lowered in union, apparatus for exchanging a loaded or unloaded pallet with an unloaded or loaded pallet, respectively, by back and forth movement of the fork lift truck and by vertical movement of the forks. The apparatus comprises a pallet supporting member which is biased under the force of a spring so as to move to an extended pallet supporting position from a retracted position out of a path of pallets carried by the forks; a lever which is located at a position higher than said pallet supporting member; and a connecting member which is formed with elongated slots into which are fitted said lever and said pallet supporting member, said connecting member being raised by upward movement of an unloaded pallet engaging the lever to incline it upwardly, the connecting member retracting the pallet supporting member and latching it. When said lever is inclined downwardly by downward movement of a loaded pallet, the pallet supporting member is unlatched and returned to said pallet supporting position. When the forks go down further, the loaded pallet which was on the upper fork of the truck is left on the supporting member and only an unloaded pallet is now on the lower fork of the truck. |
