Combination dolly-pallets

A displacement arrangement for use in a combination dolly-pallet, the displacement arrangement comprising:

• an impelling member movable between first and second positions;
• a linkage pivotally connected to the impelling member, whereby, when the impelling member moves between the first and second positions, the linkage moves pivotally relative to the impelling member between closed and open positions;
• a return assembly for returning the impelling member from the second position to the first position, thereby pivotally moving the linkage relative to the impelling member to the closed position;
• and
• a lever arrangement pivotally movable from a rest position, and a cam arrangement to transmit a force from the lever arrangement to the impelling member to drive the impelling member from the first position to the second position;
• wherein the cam arrangement comprises:
• an elongate rotatable main part;
• and
• a drive formation configured to slidably engage the lever arrangement, the drive formation being configured so that movement of the lever arrangement from the rest position can urge the drive formation and thereby rotate the cam arrangement in a drive direction to urge the impelling member to the second position.