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1. 发明授权

US4327856A Paper transfer system in a printer 失效
标题翻译：打印机中的纸张传输系统
公开(公告)号：US4327856A
公开(公告)日：1982-05-04
申请号：US148396
申请日：1980-05-09
申请人： Minoru Isobe , Etumi Ishii , Shuichi Imai , Tadasi Kodama , Wataru Ohara
发明人： Minoru Isobe , Etumi Ishii , Shuichi Imai , Tadasi Kodama , Wataru Ohara
IPC分类号： B65H5/16 , B41J15/08 , B41J19/78 , B41J19/94 , B65H20/18 , B65H17/36
CPC分类号： B41J15/08
摘要： A small printer is provided which comprises a housing, a rolled printing paper mounted in the housing, a platen along which a paper runs, a motor, and a carriage having a printing head for mosaic printing on a paper on the platen. The carriage travels along the whole width of the paper and is driven by the motor, and a paper transfer mechanism transfers the paper by one line for every traverse of the carriage. The paper transfer mechanism comprises an idler positioned beneath the path of the paper, the idler being swingable in the moving direction of the paper, and the idler having a first projection parallel to the path of the carriage at the left half of the idler and a second projection inclined to the path of the carriage at the right half thereof. The projections are engaged with the corresponding slots provided at the bottom of the carriage to ensure the swing movement of the idler is synchronized with the movement of the carriage. The idler has a substantially V-shaped friction member providing a large frictional force to the paper in the normal moving direction of the paper and a small frictional force to the paper in the opposite moving direction of the paper.
摘要翻译：提供了一种小型打印机，其包括壳体，安装在壳体中的卷绕的打印纸，纸张沿其移动的台板，马达和具有印刷头的托架，该印刷头用于在台板上的纸上进行马赛克印刷。滑架沿着纸张的整个宽度行进并由电机驱动，并且纸张传送机构将纸张每转一遍地移动到纸架上。纸张传送机构包括位于纸的路径下方的惰轮，惰轮可沿纸张的移动方向摆动，并且惰轮具有平行于惰轮左半部处的托架的路径的第一突起和第二突起在其右半部倾斜于滑架的路径。突起与设置在滑架底部的相应的槽接合，以确保惰轮的摆动运动与滑架的运动同步。惰轮具有基本上V形的摩擦构件，其在纸张的正常移动方向上向纸张提供大的摩擦力，并且在纸张的相反移动方向上对纸张产生小的摩擦力。

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