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。

公开(公告)号：US4348120A

公开(公告)日：1982-09-07

申请号：US147106

申请日：1980-05-06

申请人： Minoru Isobe ,  Hiroshi Kikuchi ,  Minoru Teshima ,  Tadasi Kodama ,  Wataru Ohara

发明人： Minoru Isobe ,  Hiroshi Kikuchi ,  Minoru Teshima ,  Tadasi Kodama ,  Wataru Ohara

IPC分类号： B41J2/26 ,  B41J2/28 ,  B41J3/12

CPC分类号： B41J2/28 ,  B41J2/26

摘要： A printer head for mosaic printing having a plurality of needles positioned on a straight line each being selectively driven towards a paper through an ink ribbon has been found. The printer head comprises of a cylindrical permanent magnet, a first yoke covering the bottom of the permanent magnet, a plurality of electromagnets each positioned on a circle on the first yoke with the predetermined angle intervals, a disk shaped spring having an outer ring and a plurality of projections towards the center of the disk, a plurality of armatures each attached to the related projection of the disk spring, a plurality of print needles each attached to the related projection of the disk spring so that each of the needles has the perpendicular component to the disk spring plane. A ring shaped spacer is positioned between the disk spring and the cylindrical permanent magnet, a second yoke for providing a magnetic flux path is positioned between the permanent magnet and each of the electromagnets, and a guideframe having a thin linear slit for arranging the top of said needles and covering the needles is provided.

摘要翻译： 已经发现一种用于马赛克印刷的打印头，其具有位于直线上的多个针，每个针被选择性地通过墨带朝纸张驱动。 打印机头包括圆柱形永磁体，覆盖永磁体底部的第一磁轭，以预定角度间​​隔分别位于第一磁轭上的圆上的多个电磁体，具有外环和 朝向盘中心的多个突起，多个衔铁，每个电枢均连接到盘簧的相关突起;多个打印针，每个连接到盘弹簧的相关突起上，使得每个针具有垂直分量 到盘弹簧平面。 环形间隔件位于盘簧和圆柱形永磁体之间，用于提供磁通路径的第二磁轭位于永磁体和每个电磁体之间，并且具有用于布置 提供针和覆盖针。