| 摘要 |
PURPOSE:To prevent deformation and skewing of a sheet material by disposing a pair of idler rollers bisymmetrically about the center line extended in the direction of transporting a sheet material and making the respective rotating directions point outward with respect to the above center line. CONSTITUTION:When a driving roller 2 is driven, the driving force is transmitted to a belt 1 mounted on the roller, so that a sheet material 6 is clamped between the belt 1 and an idler roller 3 and transported in direction of an arrow A. In this case, at least a pair of idler rollers 3 are disposed bisymmetrically about the center line L extended in the direction of transporting a sheet material 6, and the rotating directions of these rollers 3 are pointed outward with respect to the above center line L. In this arrangement, the sheet material 6 is transported in direction of an arrow C toward the left and right outside, so that the material 6 is expanded to correct deformation. |
