PURPOSE: To improve the efficiency of transferring and loading a plate material by providing a pivotal frame body capable of changing the plate material from its erect posture to its horizontal posture while it is still adsorbed by adsorbing means on a holder in such a manner as to freely elevate vertically and move horizontally.

CONSTITUTION: A hydraulic cylinder 11 is lowered by a vertically movable frame 7, and a pivotal frame member 9 is pivoted on a shaft 8 by hydraulic cylinders 14, 14 and stopped according to an inclined posture of a plate material A on a placing table 4 on an entry conveyor 2. After that, a hydraulic motor 6F is started, so that a horizontal movable frame 6 is moved to the conveyer 2 side along rack rails 5D by a chain 6G and pinions 6D, 6D to bring LS of a sucking disc 10 and a frame 9C into contact with a plate A to stop the movement of the frame 6, a sucking device is operated to suck the plate A with the sucking disc 10, and further the motor 6F is reversed to move the frame 6 to the receive conveyer 1 side, while the frame 9 is moved up simultaneously. Subsequently, the frame 6 is stopped at a designated position 1 to lower the frame 7, so that the plate A is unloaded on the position 1. On stopping the sucking device, the frame 7 is lifted up, and the motor is rotated forward so that the frame 6 is moved to the conveyer 2 side and restored.