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公开(公告)号：US4945828A
公开(公告)日：1990-08-07
申请号：US295987
申请日：1987-01-12
IPC分类号： B41J1/20
CPC分类号： B41J1/20
摘要： A pulley for connecting a driven device, that is sensitive to speed variations, to be driven by an a.c. motor that is susceptible to speed variations, caused by power line disturbances. The pulley has a peripheral drive surface for a belt drive and two side surfaces through which an opening is formed to receive a drive shaft that is turned by the a.c. motor. One of the sides of the pulley has a slot formed therein with surfaces on each side of the slot. A resilient material of a preselected Durometer value is positioned within the slot and contiguous with at least one of the surfaces in the slot, against which an element projecting from the drive shaft acts to turn the pulley. During a momentary slowdown in the motor speed, the projecting element moves away from the resilient material and permits the momentum of the driven device to maintain its speed while the motor recovers its speed.
摘要翻译： 用于连接被驱动装置的滑轮，其对速度变化敏感，由一个a.c.驱动。 由电源线路干扰引起的易受速度变化影响的电机。 滑轮具有用于皮带驱动的外围驱动表面和两个侧表面，通过该两个侧表面形成开口以接收由直流电转动的驱动轴。 发动机。 滑轮中的一个侧面具有形成在其中的槽，其中槽的每一侧具有表面。 预选的硬度计值的弹性材料位于槽内并且与槽中的至少一个表面邻接，从该驱动轴突出的元件用于转动滑轮。 在电机速度瞬间减速时，突出元件远离弹性材料移动，并允许被驱动装置的动量在电机恢复其速度时保持其速度。
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公开(公告)号：US5315928A
公开(公告)日：1994-05-31
申请号：US979707
申请日：1992-11-20
申请人： D. Michael Bocinski , Craig A. Kaufman , Randy J. Kisacky , Barton H. Kunz , Lawrence A. Stone , Jerry Z. Raski , David B. Schaefer , Douglas A. Schmidt
发明人： D. Michael Bocinski , Craig A. Kaufman , Randy J. Kisacky , Barton H. Kunz , Lawrence A. Stone , Jerry Z. Raski , David B. Schaefer , Douglas A. Schmidt
CPC分类号： B41J1/20
摘要： An impact printer has a print band moving longitudinally around pulleys with one side of the band moving in contact along a rigid platen and the other side having engraved characters presented along a print line of a print medium (e.g. paper and ink ribbon). The leading edge of platen is squared off (e.g. sharp) to scrape contamination off the band. A row of hammers impact the print medium against the band between the hammers and an impact surface of the platen. The impact surface of the platen contains multiple longitudinal grooves which start slightly back from the leading edge of the platen and which prevent increased friction force between the band and platen from occurring as the band wears the platen impact surface smooth.
摘要翻译： 冲击式打印机具有沿皮带纵向移动的打印带，带的一侧沿着刚性压板移动接触，另一侧具有沿着打印介质（例如纸和墨带）的打印线呈现的雕刻字符。 压板的前缘平整（例如锋利）以刮除带的污染。 一排锤子将打印介质撞击锤之间的带和压板的冲击表面。 压板的冲击表面包含多个纵向凹槽，其从压板的前缘稍微向后开始，并且当带磨损平台冲击表面时，防止带和压板之间的摩擦力增大。
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