PURPOSE: To surely slide sheets along a loading bed, position the tips of the sheets at the preset position, and surely re-feed the sheets by forming a fall for the sliding sheets to ride over the loaded sheets between the upstream side and the downstream side in the sliding direction of the loading bed.

CONSTITUTION: The tip in the delivery direction of a sheet 30 is dropped on a loading bed 14 on the downstream side in the delivery direction from a protruded member 22, and it is slightly lifted on the loading bed 14 by inertia. When the movement in the delivery direction is stopped, the sheet 30 is applied with the initial speed in the sliding direction and starts sliding along the loading bed 14. The sheet 30 is affected by the angle α between the protruded member 22 and the loading bed 14 and smoothly floated upward, it rides over an edge 24 on the rear end side in the sliding direction of the sheets 30, and it is mounted on the loaded sheets 30 and fully receives the sliding speed downward. The tip in the sliding direction surely reaches the preset position positioned by a stopper 23 below a sheet feed roller 15.