AIR-DRIVE TYPE CARRYING DEVICE

PURPOSE:To rotate a truck in the three dimensional directions by fitting tube- nipping rollers to roller sustaining members provided, rotatable around an axis line along the transfer direction of a truck, on the truck transferable along guide rails. CONSTITUTION:When a truck 5 reaches the right curve of guide rails 1 in the horizontal condition of the rotation axis line of tube-nipping rollers 14 and 15, overstrain is applied to the horizontal movement of the rollers 14 and 15, a roller sustaining member 11 of the rollers 14 and 15 begins rotating around an axis line in the transfer direction of the truck 5, consequently curves so as to twist in order the crushed surface of a tube 3 with the rollers 14 and 15. Then the rollers 14 and 15, rotatable around a horizontal axis line, are made the attitude change in rotatable around the vertical axis line, allowing the truck 5 to be rotatably traveled in & horizontal direction without overstrain in a right and left curved part. Here the rotation of the rollers 14 and 15 together with the sustaining member 11 around an axis line in the transfer direction of the truck 5, enables the truck 5 to travel in the three dimensional directions without overstrain in the condition of the parallel movement of the truck 5.