| 摘要 |
PURPOSE:To make it possible to easily open any page at will by providing a reversing fold on a long sheet of journal paper using a pair of rollers, on each outer periphery of which a groove and a projection are alternately provided, and housing the paper while folding it. CONSTITUTION:One projection 3 and one groove 2 are provided on the outer periphery of a roller 1. Then, the distance between the projection 3 and the groove 2 is given by pir using the radius r of the roller 1, so that a medium 4 is provided with a reversing fold at every pir interval. Namely, the medium 4 is put between the rollers 1, 1', and folded at the position where the groove 2 and the projection 3' of the rollers 1, 1' engage with each other, in an alternately reversed state as shown by a fold 5, 5', and sequentially stored into a housing case 6. |
