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1. 发明授权

US5048987A Paper guide for tractor feed printers 失效
标题翻译：拖拉机进纸打印机的纸张导轨
公开(公告)号：US5048987A
公开(公告)日：1991-09-17
申请号：US457265
申请日：1989-12-27
申请人： Phyllis S. Golden
发明人： Phyllis S. Golden
IPC分类号： B41J13/16 , B41J15/04
CPC分类号： B41J13/16 , B41J15/04
摘要： An accessory for use with perforated paper of the type used in electro-mechanical printers having a tractor wheel feed mechanism facilitates inserting the leading edge of a length of paper into the tractor feed mechanism. The paper guide accessory consists of a thin, rectangular sheet of strong, flexible material, preferably made of transparent plastic film such as polyester film, folded over on itself and creased to form a lower, rear half-sheet and a somewhat shorter upper, front half-sheet, thereby forming a pocket between the upper and lower half-sheets. Laterally aligned pairs of circular perforations located near the outer longitudinal edges of the guide, are provided through the thickness dimension of both upper and lower half-sheets. Pairs of perforations are provided at regular longitudinal intervals, and are of the proper size and spacing to register with perforations in paper inserted into the pocket. With the leading lateral edge of a length of perforated computer paper sandwiched between the upper and lower half-sheets of the guide, and the perforations in the guide aligned with the paper perforations, quick and easy insertion of the paper into the tractor feed mechanism is facilitated, while protecting the paper from tearing.
摘要翻译：用于具有拖拉机轮进给机构的机电打印机中使用的类型的穿孔纸的附件便于将一段长度的纸张的前缘插入拖拉机进给机构中。导纸附件由薄而矩形的强力柔性材料制成，优选由聚酯薄膜等透明塑料薄膜制成，折叠在其上并折皱，形成下半部分，后半部分，上部稍稍稍短从而在上半板和下半板之间形成一个袋。通过上下半片的厚度尺寸，提供位于导向件的外纵向边缘附近的一对圆形穿孔。成对的穿孔以规则的纵向间隔提供，并且具有适当的尺寸和间隔，以与插入口袋中的纸中的穿孔对准。由于夹在引导件的上下半片之间的穿孔计算机纸的一段长度的前边缘，并且引导件中的穿孔与纸张孔对齐，纸张快速方便地插入拖拉机进给机构中在保护纸张免受撕裂的同时进行。

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