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1. 发明授权

US3861510A Serial printer power drive and timing mechanism 失效
标题翻译：串行打印机功率驱动和时序机制
公开(公告)号：US3861510A
公开(公告)日：1975-01-21
申请号：US36647373
申请日：1973-06-04
申请人： VICTOR COMPTOMETER CORP
发明人： WILCZEWSKI ROBERT H , BLOMQUIST JAMES E
IPC分类号： B41J19/20 , B41J19/70 , B41J1/34
CPC分类号： B41J19/20 , B41J19/70
摘要： Power drive and timing train mechanism for serial printer mounted in an injection molded base by means of novel plastic bearings and without the usual fastening hardware, and including jack shaft belt-driven by start-stop on demand motor and, through two electrically operated clutches, separately driving power transfer and take up reel shafts, latter lifts ribbon to active position and rotates take up reel connected to print head by novel flexible driven member and retaining coupling at each end for simplified assembly and providing superior impact and vibration dampening properties in linearly moving print head laterally and return thereof by spring. After first or take up reel clutch is deenergized to effect spring return of print head to normal position, if print head velocity exceeds predetermined value interpreted by optical switch thereon and stationary sensing rack comprising pulse generator, take up reel clutch is caused to be pulsed to reduce velocity. During return of print head to home position, paper and ribbon drives are actuated by power transfer shaft through the second clutch with that clutch being deenergized by a second optical switch.
摘要翻译：通过新型塑料轴承安装在注射成型基座中的串行打印机的动力驱动和定时列车机构，不需要通常的紧固件，并且包括由启停电动马达驱动的千斤顶轴带，以及通过两个电动离合器，分别驱动动力传输和卷取轴，后者将色带提升到主动位置，并通过新颖的柔性从动元件将卷轴连接到打印头，并在每端保持联接，以简化组装，并提供优异的线性移动冲击和减振特性打印头横向并通过弹簧返回。首先松开卷取离合器或卷取离合器断电以使打印头弹回到正常位置，如果打印头速度超过其上的光开关解释的预定值，并且包括脉冲发生器的固定传感架，则使卷轴离合器被脉冲降低速度在将打印头返回到原位置时，通过第二离合器的动力传递轴致动纸张和色带驱动器，该离合器被第二光学开关断电。

2. 发明授权

US3915281A Platen and paper roll support and drive mechanism 失效
标题翻译：压板和纸卷支撑和驱动机构
公开(公告)号：US3915281A
公开(公告)日：1975-10-28
申请号：US41385273
申请日：1973-11-08
申请人： VICTOR COMPTOMETER CORP
发明人： BLOMQUIST JAMES E , WILCZEWSKI ROBERT H , CASTELLANOS RAFAEL A
IPC分类号： B41J11/38 , B41J11/04 , B41J15/04 , B41J15/16 , B41J19/76 , B41J11/20
CPC分类号： B41J11/04
摘要： Paper feed mechanism for printer for electronic calculator comprises simplified paper roll support having readily removable shaft with longitudinally spaced peripheral grooves and sleeve slidable and rotatable on shaft to engage flexible inturned flange at one of its ends with a selected groove and outwardly extending flange at other end of sleeve thereby engageable with edge of paper roll to guide and impose drag against unwinding of different width rolls, and paper feed including spring-backed pressure roller, hollow cylindrical platen with end caps pressfitted therein having central hubs press-fitted on platen shaft, one with internal ratchet gear, and external platen gear rotatable on platen shaft as part of platen drive train including spring-loaded drive coupling cooperating with internal ratchet gear, intermediate gear and cyclically rotatable worm gear which, together with a detent, prevent backlash and effect minimum acceleration without overspin, all providing a rigidly located printing surface with manual twirling of platen available to feed paper by virtue of drive coupling acting as break-away clutch.
摘要翻译：用于电子计算机的打印机的进纸机构包括简化的纸卷支架，其具有容易拆卸的轴，其具有纵向间隔开的周向凹槽和可在轴上滑动并可旋转的套筒，以在其一端具有柔性内翻凸缘，在另一端具有选定的凹槽和向外延伸的凸缘从而可以与纸卷边缘接合，以引导和阻止不同宽度的卷筒的退绕，并且包括弹簧支撑的压力辊的进纸装置，压缩在其上的端盖的中空圆柱形压板具有压配在压板轴上的中心轮毂一个具有内部棘轮齿轮，外部压板齿轮可在压板轴上旋转，作为压板传动系的一部分，其包括与内部棘轮齿轮，中间齿轮和可循环旋转的蜗轮配合的弹簧加载驱动联轴器，其与制动器一起防止齿隙和效果最小加速度没有超标，都提供了一个刚性的地方通过手动旋转压板可以通过作为脱离离合器的驱动联轴器进给纸张。

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