公开(公告)号：US5300008A

公开(公告)日：1994-04-05

申请号：US938183

申请日：1992-08-31

申请人： Ho C. Lee ,  Larry T. Sehringer ,  Gary D. VanBurger

发明人： Ho C. Lee ,  Larry T. Sehringer ,  Gary D. VanBurger

IPC分类号： B41J11/58 ,  B65H45/101 ,  B65H45/20

CPC分类号： B65H45/1015 ,  B41J11/58 ,  B65H2701/11231

摘要： Tractor drives of a high speed printer move a length of continuous-form paper longitudinally up from a box of fanfold stacked paper, through a print mechanism and downward to refold onto a fanfold stack. A set of bead or link chains hang vertically from the printer on each respective major side of the descending paper. The chains are positioned to interact with the folding paper. The chains swing against the paper to aid in creasing the paper at the folds in the proper fanfold direction. One or more chains have pendants attached at the chain's lower swinging end. The pendants are sufficiently long, stiff and light weight to prevent the lower ends of the chains from getting caught in the refolding stack of paper which could lead to jamming the travel of paper through the tractor drives. Preferably, the pendants are produced from 7 inch long segments of approximately 25 mil. diameter piano wire, bent at mid length to form a wide tip loop that prevents the pendant from falling into sprocket holes along each longitudinal edge of the length of paper, and both ends of the wire loop are soldered to the lower end of the chain.

摘要翻译： 高速打印机的拖拉机驱动器通过打印机构将一长串连续纸从一盒折叠堆叠的纸张纵向向上移动，并向下折叠到折叠堆叠上。 一组珠或链条链从打印机垂直悬挂在下降纸的每个相应的主要侧面上。 链条定位成与折叠纸相互作用。 链条相对于纸张摆动，以帮助在适当的折叠方向折叠纸张。 一条或多条链子在链条的下摆动端附着吊坠。 吊坠足够长，坚固且重量轻，以防止链条的下端被卡在纸的重折叠堆中，这可能导致纸张通过拖拉机驱动器的行进。 优选地，吊坠由约25密耳的7英寸长段制成。 直径的钢琴线，在中长度弯曲以形成宽的尖端环，防止垂饰沿纸长度的每个纵向边缘落入链轮孔，并且线环的两端焊接到链的下端。