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    Two line contact bushing mounting of a plotter carriage with pre-load
    4.
    发明公开
    Two line contact bushing mounting of a plotter carriage with pre-load 失效
    在两个支柱上窝安装了预应力Plotterwagen。

    公开(公告)号：EP0622759A3

    公开(公告)日：1995-04-26

    申请号：EP94106216.8

    申请日：1994-04-21

    申请人： Hewlett-Packard Company

    发明人： Beauchamp, Robert W. ,  Nguyen, Michael A.

    IPC分类号： B41J11/22 ,  G06K15/22

    CPC分类号： B41J19/00

    摘要： A molded plastic printer carriage (10) mountable in the printer on a pair of slider rods (SF,SR) uses a pair of spaced front bushings (80,82) and single rear bushing (70) positioned on a line intermediate the two front bushings (80,82). The rear bushing (70) is eccentricly spring biased in a direction away from the front bushings (80,82) and each bushing has two line contacts with the slider rod on which it is mounted, the first of the line contacts being at the top of the bushing and the second being on the side of the bushing substantially facing the opposite slider rod. The eccentric spring biasing and the two line contact configuration of the bushings prevents rotation of the carriage around the slider rods during rapid movement thereof during printing.

    Two line contact bushing mounting of a plotter carriage with pre-load
    5.
    发明公开
    Two line contact bushing mounting of a plotter carriage with pre-load 失效
    在两个支柱上窝安装了预应力Plotterwagen。

    公开(公告)号：EP0622759A2

    公开(公告)日：1994-11-02

    申请号：EP94106216.8

    申请日：1994-04-21

    申请人： Hewlett-Packard Company

    发明人： Beauchamp, Robert W. ,  Nguyen, Michael A.

    IPC分类号： B41J11/22 ,  G06K15/22

    CPC分类号： B41J19/00

    摘要： A molded plastic printer carriage (10) mountable in the printer on a pair of slider rods (SF,SR) uses a pair of spaced front bushings (80,82) and single rear bushing (70) positioned on a line intermediate the two front bushings (80,82). The rear bushing (70) is eccentricly spring biased in a direction away from the front bushings (80,82) and each bushing has two line contacts with the slider rod on which it is mounted, the first of the line contacts being at the top of the bushing and the second being on the side of the bushing substantially facing the opposite slider rod. The eccentric spring biasing and the two line contact configuration of the bushings prevents rotation of the carriage around the slider rods during rapid movement thereof during printing.

    摘要翻译： 一种模制塑料的打印机滑架（10）上的一对滑块杆（SF，SR）的打印机安装使用位于一条线的中间两个前一对间隔的前衬套（80，82）和单个后衬套（70） 套管。 后侧的衬套被作偏心弹簧偏压的方向上从正面衬套远离，并且每个衬套具有与它在其上安装在滑块杆，第一对线接触是在套管的顶部的，后两个线接触正对 套管的侧基本上面向相对滑杆。 偏心弹簧偏压和衬套的两个线接触配置在打印过程中它们的快速移动期间防止围绕滑动杆托架的转动。

    Apparatus and method for plotting using polyline vector lookahead
    9.
    发明公开
    Apparatus and method for plotting using polyline vector lookahead 失效
    Gerätund Verfahren zum Plotten mit Polygenzug-Vektorvorhersages。

    公开(公告)号：EP0505922A2

    公开(公告)日：1992-09-30

    申请号：EP92104754.4

    申请日：1992-03-19

    申请人： SUMMAGRAPHICS CORPORATION

    发明人： Poole, Dan R. ,  Freeman, Marvin

    IPC分类号： G06K15/22

    CPC分类号： G06K15/22

    摘要： A graphics plotter for drawing a series of connected vector lines forming a plot. The plotter has a motor control for controlling motors which drive a pen to move relative to a medium at a variable velocity in a plane defined by a major axis and a minor axis perpendicular to the major axis. The motor control determines a minimal nonzero terminal velocity of the pen along the major axis at a point at which a maximum change in direction occurs. The motor control has a program for determining a minimal nonzero optimal velocity at the point of maximum change in direction. The minimal nonzero optimal velocity is the junction of a ramped-down optimal velocity preceding the point of maximum change in direction and a ramped-up optimal velocity succeeding the point of maximum change in direction. The motor control also includes a double integrating filter implemented in the sampled domain for limiting the acceleration of the pen along the major axis at the point of maximum change in direction to a discrete value such that the difference between the actual pen trajectory and a desired pen trajectory is an amount less than or equal to a predetermined acceptable error.

    摘要翻译： 用于绘制一系列连接的矢量线的图形绘图仪，形成一个曲线。 绘图仪具有用于控制马达的马达控制器，其驱动笔在由长轴和垂直于长轴的短轴所限定的平面中以可变速度相对于介质移动。 电动机控制确定在发生最大方向变化的点处沿着长轴的笔的最小非零终端速度。 电动机控制具有用于确定方向最大变化点的最小非零最优速度的程序。 最小非零最佳速度是在方向最大变化点之前的倾斜最优速度与方向最大变化点之后的斜坡最佳速度的结。 电动机控制还包括在采样域中实现的双积分滤波器，用于在最大方向变化点处将笔沿着长轴的加速度限制到离散值，使得实际笔轨迹与期望笔之间的差 轨迹是小于或等于预定可接受误差的量。