Adjustment of stitch cams in a knitting machine
AssigneeH. Stoll GmbH & Co.
InventorsErnst Goller, Jurgen Ploppa, Fritz Walker
Life of this patent
Estimating the term…
Abstract
A carriage 14 is reciprocable along a needle bed of a flat knitting machine and carries a needle cam. A pair of stitch cams 12 and 13 are adjustably supported by the carriage 14 and are disposed so as to trail behind the needle cam in alternate strokes of the carriage, respectively. An adjustment mechanism 11 includes a stepping motor 38 (FIG. 3) which adjusts the trailing stitch cam 12 or 13 not only at the beginning of the respective stroke but also during the course of the stroke itself, thereby enabling the stitch density to be varied within each row of the knitted article as well as from row to row.
Claims19
In a knitting machine having a carriage movable along a needle bed through successive strokes, a pair of stitch cams adjustably supported by said carriage to trail behind a needle cam, mounted on said carriage, during alternate ones of said carriage strokes, respectively, and an adjusting mechanism including a stepping motor operative to adjust each of said stitch cams relative to said carriage at a beginning of the respective carriage stroke, the improvement comprising said adjusting mechanism including said stepping motor also being operative during the stroke of said carriage to adjust the trailing one of said stitch cams.
In a knitting machine having a carriage movable along a needle bed through successive strokes, a pair of stitch cams adjustably supported by the carriage to trail behind a needle cam, mounted on the carriage, during alternate ones of the carriage strokes, respectively, and an adjusting mechanism including a stepping motor operative to adjust each of the stitch cams relative to the carriage at a beginning of the respective carriage stroke, the improvement comprising a guide arrangement to guide the stitch cams during adjustment relative to the carriage, wherein:
- said adjusting mechanism including said stepping motor also being operative to adjust the trailing one of the stitch cams during each said carriage stroke;
- and
- said guide arrangement includes for each of the stitch cams an inclined guide slot in said carriage, a guide peg mounted on the stitch cam and slidably engaged in the guide slot, an adjusting ledge driven by the stepping motor for movement at an angle to the guide slot, biasing means urging the guide peg into engagement with the adjusting ledge, a lever on which the guide peg is mounted, and an axle supporting the lever for rotation relative to the carriage, said axle being disposed parallel to said guide peg.
Dependencies are inferred from the claim text.