PURPOSE: To automatically feed sections by every suitable quality to a stand of an inset inserter.

CONSTITUTION: This device is provided with a vertically movable fork apparatus 10, a sorting claw 21 in the front, a supporting apparatus 30 in the rear, an auxiliary claw 35, and an air apparatus 40. Lowering the fork apparatus 10 then advancing the sorting claw 21 and elevating the auxiliary claw 35 can vertically divide sections W, W... on the fork apparatus 10 via the sorting claw 21 and the auxiliary claw 35. The fork apparatus 10 is lowered moreover to stably support the upper side sections W, W... by supporting claws 32 and 32 of the supporting apparatus 30, and the air apparatus 40 is advanced in a gap with the lower side sections W, W... then air is blown out to separate both the sides. The lower side sections W, W... are transferred to a conveyer C by more lowering the fork device 10.