公开(公告)号：US5405205A

公开(公告)日：1995-04-11

申请号：US278556

申请日：1994-07-21

申请人： John C. Venthem ,  Marlan L. Schmidt ,  James A. Parnell

发明人： John C. Venthem ,  Marlan L. Schmidt ,  James A. Parnell

IPC分类号： B41J15/16 ,  B41J13/02

CPC分类号： B41J15/16

摘要： The invention disclosed herein provides a method and apparatus for counteracting the effects of a localized drag on a sheet medium as it is being moved by a drive system, for example, in a printer or plotter to prevent misregistration of the sheet medium with the X-axis drive system as the sheet medium is moved past the print or plot head which creates a drag thereon. The sheet medium is stiffened in the region thereof which is contacted by the print or plot head by bending the sheet medium in a direction normal to the direction of movement of the sheet medium. The bend may be provided by a curved guide located between the print or plot head and the X-axis drive system. Friction is reduced between the sheet medium and the curved guide by mounting the curved guide, e.g., one or more rollers, to rotate freely under the action of the sheet medium moving thereover, or by pneumatically supporting the sheet medium above the curved guide as the sheet medium is moved thereover.

摘要翻译： 本文公开的本发明提供了一种方法和装置，用于当片状介质被驱动系统例如在打印机或绘图仪中移动时抵消片材介质上的局部阻力的影响，以防止片材介质与X射线的不对准， 当纸张介质移动经过在其上产生拖动的打印或绘图头时，轴驱动系统。 片材介质在其区域中被加强，该片材介质通过沿着垂直于片材介质的移动方向的方向弯曲片材介质而被印刷或绘图头接触。 弯曲可以由位于打印头或绘图头与X轴驱动系统之间的弯曲导向器提供。 通过安装弯曲引导件（例如一个或多个辊），在其上移动的片材介质的作用下自由旋转，或者通过气动地支撑弯曲引导件上方的片材介质，使片材介质和弯曲引导件之间的摩擦力减小 片材介质在其上移动。

公开(公告)号：US5280309A

公开(公告)日：1994-01-18

申请号：US713703

申请日：1991-06-11

申请人： Charles D. Zinsmeyer ,  Marlan L. Schmidt ,  Gregory L. Spaulding

发明人： Charles D. Zinsmeyer ,  Marlan L. Schmidt ,  Gregory L. Spaulding

IPC分类号： G01D15/24 ,  G01D15/16 ,  G01D15/18

CPC分类号： G01D15/24

摘要： A belt-drive tensioning system for a motor drive positioning system, especially for X-Y digital plotters. The tensioning system employs spring-loading involving motion along only one translational direction to accurately preset and maintain constant the desired belt tension. Preferred embodiments to provide a self-contained modular unit include a dual plate assembly in roller-bearing relationship, and the use of V-shaped mounting springs.

摘要翻译： 一种用于电机驱动定位系统的皮带传动张紧系统，特别适用于X-Y数字绘图仪。 张紧系统采用弹簧加载，涉及沿着一个平移方向的运动，以精确地预设并保持所需的皮带张力恒定。 提供独立模块化单元的优选实施例包括具有滚子轴承关系的双板组件以及使用V形安装弹簧。