PURPOSE: To surely invert a shape steel with no influence by its shape by constituting a device providing a rotary unit and a turn arm, having an inversion support in the base part, in a truck and supporting further inverting the shape steel cooperatively with both the rotary unit and the turn arm turned by running the truck.

CONSTITUTION: Positioning a turn arm 15 in the vicinity of a tilt plate 5, a frame 22 is lifted for an acceptance position of shape steel K, and it is received on the tilt plate 5. In this way, the shape steel K, which tilts previously in an inverting direction by the tilt plate 5, is supported between the tilt plate 5 and the turn arm 15. Subsequently, when a truck 1 is moved on the frame 22, a rotary unit 3 turns by the action of a trapezoidal rail 23. Thus turning also the tilt plate 5 and the turn arm 15, the shape steel K is moved sliding and stopped to an inversion support 16. When the turning action advances, soon inverting the shape steel K, it is loaded on a receiving bed 21. Next the frame 22 is lowered. Thus the shape steel K can be surely inverted.