PURPOSE: To convey a very thin printed board and the like rationally and smoothly by providing numerous support rods to disks fixed to rotating shafts.

CONSTITUTION: Numerous rotating shafts 2 are provided in parallel in the condition square to the conveying direction f1, and numerous disks 3 are fixed to the positions of the rotating shafts 2 at adequate intervals, in the relation superposing partially giving no interference each other, in the side surface view at the longitudinal positions in the conveying direction. And at the plural positions at the peripheral edges of the left and the right side surfaces of the disks 3, numerous support rods 4 in the superposing relation each other in the scope of a constant length in the direction parallel to the rotating shafts 2, are projected. In this case, the pitches of the rotating shafts 2 are made 38 to 56mm, and the diameters of the disks 3 are set at the adequate values in the scope 60 to 70mm, while the number of the support rods is made 4 to 8, and it is preferable to provide them at a constant interval.