Stitch presser for knitting machine

Abstract

A stitch presser for a knitting machine equipped with at least two needle beds arranged in an inverted "V", and provided with needles which intersect during their upward movement, a carriage movable above the needle beds, a system for control of the needles during their displacement in alternate directions, and a means for the alternate control of the stitch presser along a row of needles and in another adequate position for the movement in the opposite direction wherein the stitch presser acts between two needle beds on the stitches held by the needles. The stitch presser includes a slide thread for pressing the knitwear and a supplementary means for pressing the stitches against the needle beds.

What is claimed is: 
     
       1. An improved stitch presser for a knitting machine equipped with the following: at least two needle beds arranged in an inverted V-shape;   needles capable of intersecting during their upward movement;   a carriage movable above the needle beds;   a system for control of the needles during their displacement in alternate directions;   a stitch presser which acts between the two needle beds on the stitches held by the needles; and   means for alternate control of the stitch presser in a position adequate for the movement of said stitch presser along a row of needles and in another position adequate for the movement in the opposite direction;   wherein the stitch presser comprises a slide thread for pressing the knitwear and a supplementary means for pressing the stitches against the needle beds, the field of action of the supplementary means being at least partially superimposed over the field of action of the slide thread and whose field of action starts ahead of the first point of crossing of the needles, seen in the moving direction of the carriage.   
     
     
       2. The stitch presser of claim 1 wherein the field of action of the supplementary means ends ahead of the end of the complete upward movement of the needles, and wherein the cumulative width of the field of action of said slide thread and said supplementary means is at least equal to the spacing measured between the needle bed. 
     
     
       3. The stitch presser of claim 1 wherein the supplementary means is a nozzle through which a fluid is ejected to press the stitches against the needle beds. 
     
     
       4. The stitch presser of claim 3 wherein the nozzle ejects the fluid in a direction which is not perpendicular to the movement of the carriage. 
     
     
       5. The stitch presser of claim 4 wherein the fluid is compressed air. 
     
     
       6. The stitch presser of claim 5 wherein the fluid is a liquid. 
     
     
       7. The stitch presser of claim 2 wherein the supplementary means comprises a flexible thread slide mounted on a slot working against the effect of a compressible member. 
     
     
       8. The stitch presser of claim 7 wherein the compressible member is a spring. 
     
     
       9. An improved stitch presser for a knitting machine equipped with at least two needle beds arranged in an inverted V-shape, with needles capable of intersecting during their upward movement, with a carriage movable above the needle beds, with a system for control of the needles during their displacement in alternate directions, and with a stitch presser which acts between the two needle beds on the stitches held by the needles and which includes means for alternate control of the stitch presser in a position adequate for the movement of said stitch presser along a row of needles and another position for the movement in the opposite direction; wherein the stitch presser comprises a slide thread and supplementary means whose field of action is at least partially superposed over the field of action of the slide thread and whose field of action starts ahead of the first point of crossing of the needles, seen in the moving direction of the carriage.   
     
     
       10. The stitch presser of claim 9 wherein the field of action of the supplementary means ends ahead of the end of the complete upward movement of the needles, and wherein the cumulative width of the field of action of said slide thread and said supplementary means is at least equal to the spacing measured between the needle bed.