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12. 发明授权

US5462371A Indexing planetary gear train for a printer 失效
标题翻译：用于打印机的分度行星齿轮系
公开(公告)号：US5462371A
公开(公告)日：1995-10-31
申请号：US263848
申请日：1994-06-21
申请人： Robert K. Beretta , Jason M. Quintana
发明人： Robert K. Beretta , Jason M. Quintana
IPC分类号： B41J19/78 , B41J23/02 , F16H1/46 , B41J17/02
CPC分类号： F16H1/46 , B41J19/78 , B41J23/025 , F16H2001/2881
摘要： An indexing double planetary gear train forms a portion of a feed system for accurately advancing a print media sheet through a printer. The planetary gear train has primary and secondary rings coupled to a sun gear by a series of planet gear clusters. Each planet gear cluster has primary and secondary planet gears which engage the respective primary and secondary rings. By assembling at least two of the gear train components to be fully indexing, and through the use of the identical planet gear clusters formed in a single mold, imperfections in the planet clusters and the rings, such as tooth-to-tooth defects or eccentricity, are canceled and have no effect on the accuracy of the line feed increments. Thus, more accurate and uniform media advance is achieved using plastic molded gears which are also relatively low in cost to manufacture and easy to assemble.
摘要翻译：分度式双行星齿轮系形成进给系统的一部分，用于通过打印机精确地推进打印介质片材。行星齿轮系具有通过一系列行星齿轮组联接到太阳齿轮的主环和副环。每个行星齿轮组具有接合相应的主和次级环的主和副行星齿轮。通过将至少两个齿轮系组件组装成完全分度，并且通过使用形成在单个模具中的相同的行星齿轮组，行星架和环中的缺陷，例如齿 - 齿缺陷或偏心被取消，并且对换行增量的精度没有影响。因此，使用塑料模制齿轮实现更准确和统一的介质前进，塑料模制齿轮的制造成本和易于组装也相对较低。

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