| 摘要 |
PROBLEM TO BE SOLVED: To achieve space saving with a simple structure.SOLUTION: A first conveyance path 20A and a second conveyance path 20B are formed of a first transport shaft 21A driving in the forward path, and a second transport shaft 21B driving in the return path, having drive rollers 22A, 22B that can be driven by being connected with a drive source, and support rollers 23A, 23B arranged coaxially and capable of taking different rotational state. |
