Printwire Insertion Workstation
Original Publication Date: 1988-Mar-01
Included in the Prior Art Database: 2005-Feb-14
An automated workstation feeds and inserts printwires in the wire guide of a dot matrix printer printhead. (Image Omitted) The assembly task is illustrated in Figs. 1 and 2. Referring to Fig. 1 it is seen that Printwire 1 is inserted into Wire Guide 4 through Return Spring 2, which is previously inserted in Spring Pocket 3. The Printwire feeds through a wire path the full length of Wire Guide 4 and into a carbide End Plate 5. Wire Guide 4 is molded with a number of Spaces 6, between bulkheads, which create discontinuities in the wire path, with a particularly large gap adjacent to the end plate. Referring to Fig. 2 it is apparent that printwire insertion is made difficult not only by Spaces 6, but also because the Wire Path 7 is curved and enters Wire Guide 4 at an angle of 9 degrees.