PURPOSE: To eliminate movable nail drive source, when taking stacked materials one by one from the bottom, by opening/closing the movable nail by means of operating section provided to lifting member.

CONSTITUTION: Multi-stacked material is carried to the position stopped by stopper 2. The movable nail is rotated by cylinder unit 19 to lift the carrying material, then it is moved reciprocally to stop the carrying material at left and right sides. When taking the lowest material one by one, the elevating member 6 is lifted to lift the carrying member to predetermined position. Here the operating section 17 pushes up the movable nails through roller 18 to the position where the spring 15 exceeds over intermediate position where the spring 15 exceeds over intermediate position. Then push up member 8 is lowered to rotate the movable nail 10 downwardly thus to stop the carrying meterial at second step from the bottom.