Proportional Ribbon and Correction Feed Mechanism That Does Both Lift and Feed With a Single Motor
Original Publication Date: 1983-Jun-01
Included in the Prior Art Database: 2005-Feb-07
The feeding of ribbons for printing and for correction commonly requires two separate drive trains and an elaborate mechanism for shifting the drive from the ribbon to the correction tape. The mechanism illustrated in the drawing provides a single motor 10 drive which is reversiable, such as a stepper motor which, through gear 12, drives idler gear 14. Idler gear 14 is supported on transfer arm 16. Transfer arm 16 is pivotally mounted coaxial to gear 12 and may rotate a limited amount in either direction about its mounting point. Also carried on transfer arm 16 is a camming member 18 engageable with cam surfaces 20 and 22 on arm 24.