公开(公告)号：US3929328A

公开(公告)日：1975-12-30

申请号：US45849374

申请日：1974-04-05

Applicant: IBM

Inventor： KNAPPE LAVERNE FRANK ,  SAPETTA LEE PHILIP ,  STROEBEL GARY JOHN ,  WILKE MYRON ARDEN

IPC: B65H5/00 ,  B65H5/16 ,  B65H29/12 ,  G06K13/07 ,  H02N2/00

CPC classification number: G06K13/07

Abstract: The document transport device includes an elastomer coupler element with a distal end surface confronting a document path to impart motion to a document. The elastomer element is flexure mounted so that excitation of the associated electromechanical transducer provides an oscillatory vibratory motion as a periodic rotation and translation which induces an elliptical procession of the coupler end surface confronting the document path to impart motion to the document. In an environment where the documents have uniform drag load, operation near the no-load resonant frequency produces the optimum efficiency and minimum power consumption. Where widely varying document drag loads are encountered, operation at a frequency less than but approaching the stall load resonant frequency is used to provide more nearly uniform velocities. An increase in document drag load, which usually accompanies or causes a reduction in velocity, causes an increased driving force to be exerted resulting in a selfcompensating mode of operation.

Abstract translation: 文件传送装置包括弹性体联接器元件，其具有面向文档路径的远端表面以向文件赋予运动。 弹性体元件被弯曲安装，使得相关联的机电换能器的激发提供作为周期性旋转和平移的振荡振动运动，其引起面对文档路径的耦合器端面的椭圆形处理以向文档赋予运动。 在文件具有均匀牵引载荷的环境中，靠近空载谐振频率的操作产生最佳效率和最小功耗。 在遇到广泛变化的文件阻力负载的情况下，使用频率小于但接近失速负载共振频率的频率提供更接近均匀的速度。 通常伴随或导致速度降低的文档拖曳负载的增加导致施加增加的驱动力，导致自补偿操作模式。