公开(公告)号：US3889893A

公开(公告)日：1975-06-17

申请号：US43281974

申请日：1974-01-14

Applicant: COMPUTER PERIPHERALS

Inventor： SILVERMAN IRA ,  IRVINE JAMES M

IPC: B65H23/032 ,  B41J17/02 ,  B41J17/36 ,  B41J33/34 ,  B41J33/40 ,  B41J33/42 ,  B41J33/44 ,  B41J35/10 ,  B65H26/00 ,  B65H25/26 ,  B65H17/02

CPC classification number: B41J33/34 ,  B41J33/42 ,  B41J33/44

Abstract: Drive and control apparatus utlizing a pair of gear motors alternating as drive and drag means for the ribbon wherein the drive motor has full voltage applied thereto for driving the ribbon, and the drag motor has reduced voltage applied for maintaining tension on the ribbon. The direction of drive is caused to be reversed by switching bars over which the ribbon travels, the bars being poles of a switch connected to the printer circuitry. The apparatus includes skew means to move the ribbon toward one or the other end of the spools and wherein a skew arm is swingably driven against either an upper or a lower stop by separate drive means caused to be actuated by ribbon sensing means at one end of the ribbon spools.

Abstract translation: 驱动和控制装置利用一对齿轮电动机作为驱动和牵引装置交替使用，其中驱动马达具有施加到其上的全电压用于驱动带状物，并且拖拉马达具有降低的施加电压以保持带上的张力。 驱动方向由带状物穿过的开关杆转动，杆是连接到打印机电路的开关的极点。 该装置包括用于将色带移动到卷轴的一端或另一端的偏斜装置，并且其中通过单独的驱动装置将歪斜臂可摆动地驱动抵靠上止挡或下止挡，由驱动装置的一端 丝带卷轴。