| 摘要 |
In a conveyance system with crossing paths, such as used in the conveyance of piled-up articles such as newpapers and the like, the improvement consisting in providing two couples of belts arranged crosswise relative to one another and equipped with a lifting mechanism capable of lifting and depressing one couple of belts relative to the other. The lifting mechanism comprises an array of idle belt-tightening rollers and fixed rollers, a few rollers being mounted in such a way as to impart a U-bend to top belt lap, the U-bend area being mounted on a special swingable arm. Appropriate linkages ensure the desired synchronization of the movement of the upper laps of the belts, so that the articles on the belts can easily be passed from a lower-level belt to a higher-level belt, and viceversa. It is also possible to select which belts are to stand at a higher or lower level as necessity demands. Such a mechanism enables the piles of sheets to be switched from a conveying path to another without disturbing the correct superposition of the articles in the heaps. |
