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1. 发明授权

US5062602A Double feeding prevention in a bottom sheet document feeder 失效
标题翻译：底部进纸器中双重进纸防止
公开(公告)号：US5062602A
公开(公告)日：1991-11-05
申请号：US572279
申请日：1990-08-24
申请人： Glenn F. Kress , Gerald L. Coy
发明人： Glenn F. Kress , Gerald L. Coy
IPC分类号： B65H3/12 , B65H3/52 , G03G15/00
CPC分类号： B65H3/523
摘要： A multifeed resistance system 90 which is a simple and low cost modification of known non-retard type bottom sheet separator/feeders, especially a vacuum feeder 17 in which the stack 14 of sheets is fluffed by an air knife 18 and the front area of the bottom sheet 98 is pulled down by vacuum and fed vacuum out from the bottom of the stack 14 with the corrugating vacuum belt feeder 17 and there fed out of the tray 16 from underneath the stack 14. A limited area of special multifeed resisting or retarding member 92 under the rear area of the stack 14 has been found to be effective in resisting multifeeds, yet not interfere with effective bottom sheet sequential feeding. One or more areas of the double feeding resistance member 92 overly the rear or upstream portion of the stack supporting bottom surface 15 of the stacking tray 16. This is an oriented (one-way) fiber mat, cloth or pad material, the fibers 94 of which are angled upstream (oriented towards the rear of the tray 16). These upstream oriented fibers 94 engage the trail or upstream edge area of the second-from-the-bottom sheet 96 to resist its downstream movement as the bottom-most sheet 98 is being initially separated and fed out.
摘要翻译：已知的非延迟型底片分离器/进料器，特别是真空进料器17的简单且低成本的改进的多进给电阻系统90，其中片材堆14由气刀18起飞，底部片98被真空拉下并且用瓦楞真空带馈送器17从堆叠14的底部送出真空，并且从堆叠14的下面从托盘16馈送出来。特殊的多面耐压或延迟构件的限定区域已经发现在堆叠14的后部区域92处有效地抵抗多片材料，但是不会干扰有效的底片顺序进给。双重进给电阻部件92的一个或多个区域覆盖堆叠托盘16的堆叠支撑底表面15的后部或上游部分。这是定向（单向）纤维垫，布或垫材料，纤维94 其向上游倾斜（朝向托盘16的后部）。这些上游取向纤维94接合第二底层片材96的尾部或上游边缘区域，以抵抗其下游运动，因为最底层片材98最初分离并送出。

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