| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the flatness of a conveyance belt cannot be improved, by a simple constitution.SOLUTION: A guide member 2 for guiding and holding a conveyance belt 1 is provided with one or a plurality of slits 7 whose conveyance belt 1 side is open, along the conveyance direction. If the upstream side in the conveyance direction is called an inlet part 7a side, the downstream side in the conveyance direction is called an outlet part 7b side, and the intermediate part is called a central part 7c, the slits are formed in the shape that the cross-sectional area in the cross section orthogonal to the conveyance direction becomes gradually small from the inlet part 7a side to the central part 7c, and becomes gradually large from the central part 7c to the outlet part 7b side. |
