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1. 发明授权

US4730823A Adaptive document feed pick mechanism 失效
标题翻译：自适应文档馈送机制
公开(公告)号：US4730823A
公开(公告)日：1988-03-15
申请号：US935886
申请日：1986-11-28
申请人： Daniel A. Barela , Mark A. Beran , Louis A. Bustamante , Cecil M. McDonald , Ronald E. Reese , Roger D. Shepherd
发明人： Daniel A. Barela , Mark A. Beran , Louis A. Bustamante , Cecil M. McDonald , Ronald E. Reese , Roger D. Shepherd
IPC分类号： B65H43/00 , B65H1/14 , B65H1/18 , B65H3/08 , B65H83/00
CPC分类号： B65H1/18 , B65H3/0833 , B65H3/0891
摘要： Sheet feeder having adaptive mechanism for assuring dependable automatic operation when the stack of sheets to be fed consists of sheets having varying thicknesses and weights. In a sheet feeder having pickers to move a document from the top of a stack of sheets supported by a moveable table to a feed-in position, the latter possibly including a vacuum belt for moving the document, sensors supply signals to indicate a sheet has been picked. After moving the pickers and table to initial positions, the controller moves the picker to a predetermined reference position. If a sheet is picked above or below the predetermined initial position, the position of the table is adjusted accordingly. In a second embodiment in a recirculating automatic sheet feeder, the table is initially positioned then after feeding the sheets from the stack once, it is initialized at a second predetermined position depending on the number of documents in the stack and on the position of the table prior to picking the documents a second time.
摘要翻译：供纸机具有自动机构，用于确保待供纸的堆叠由具有不同厚度和重量的片材组成的可靠的自动操作。在具有用于将文件从由可移动台支撑的片材堆叠的顶部移动到送入位置的拾纸器的片材进给器中，后者可能包括用于移动文件的真空带，传感器供应信号以指示片材具有被挑选在将拾取器和工作台移动到初始位置之后，控制器将拾取器移动到预定的参考位置。如果将纸张从预定的初始位置上方或下方拾取，则相应地调整工作台的位置。在再循环自动送纸器的第二实施例中，桌子最初定位，然后在从纸叠一次送出纸张之后，根据堆叠中的文件数量和桌子的位置将其初始化在第二预定位置在第二次选择文件之前。

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