A conveying device comprises: a plurality of holding mechanisms attached to a rotary shaft； a speed-changing mechanism which changes the angular speed of each of the plurality of holding mechanisms； a first cover extending from a first holding mechanism toward a second holding mechanism, such that the first cover covers a gap between the two holding mechanisms from an outside thereof in a radial direction of the rotating shaft； and a second cover extending from the second holding mechanism toward the first holding mechanism such that the second cover covers the gap from the outside thereof in the radial direction, and overlapping with the first cover. The two covers have lengths enough to be able to overlap with each other in the radial direction in a state in which the two holding mechanisms are furthest apart from each other.
