CH662137A5 - METHOD FOR PRODUCING SEALABLE FINISHING EDGE ON KNITTED. - Google Patents

Description

The invention relates to a method for producing separable end edges on knitted fabrics on a knitting machine with two needle carriers equipped with latch needles, the stitches held by the needles of the first needle carrier first being reassigned to the stitches of the needles of the second needle carrier and then with needles of the second Needle carrier is worked at least one right / left row of stitches.

In order to achieve separable fabric edges in knitted or knitted end panels, it is already known to transfer stitches from one needle carrier to the other and then to work right / left stitch rows as the actual end rows. However, it turned out that these measures alone are not sufficient to achieve permanently separable knitted edges. It is also known to form end rows of stitches with specially structured yarns which make it difficult to separate the knitted edge. In addition to the above-mentioned disadvantage, separate device parts or adjustment measures are required on the knitting machine.

The invention is based on the object of developing a method for producing separable end edges on knitted fabrics which can be produced on normal knitting machines without special additional measures and which provides good separation strength of the end edges.

Starting from a method of the type mentioned at the outset, the object is achieved according to the invention in that at least one right / right row with catch handles on the first and stitches on the second needle carrier are formed on the end rows mentioned at the beginning in the end edge area.

before the handles of the first and the stitches of the second needle carrier are thrown off in the edge region.

In this case, it has proven advantageous not to simultaneously throw off the handles of the first and the stitches of the second needle carrier, but rather successively.

The method according to the invention can be used particularly advantageously in the production of knitted fabrics on flat knitting machines. Here, even in smaller step areas, which result in the desired shape of the knitted fabric, a final edge that remains stable is achieved. Advantageously, in order to achieve clean step corners when forming the right / right rows with tuck handles, the last and the step corner marking needle of the first needle carrier, from which a stitch has previously been transferred to the second needle carrier, can be used to throw off the step edge stitches and handles - stay free. After throwing off the loops and stitches in the final edge step, it is then expedient to knit a tuck handle in the first needle carrier and knit a stitch in the subsequent stitch row when continuing to knit on the step corner needle mentioned.

The separable rows of stitches can be connected to a wide variety of bindings, e.g. R / L, R / R, R / R crossed, L / L, and patterns (stitch, tuck handle, float) are produced, provided that only the knitting machine has two needle carriers.

The method according to the invention is explained in more detail below with reference to the accompanying drawings.

In detail show:

Figure 1 is a view of a knitted sweater front part;

Figure 2 is a plan view of a knitted sleeve part;

FIG. 3 shows the thread running representation to achieve a separable end edge at the upper end of the knitted form according to FIGS. 1 and 2;

FIG. 4 shows a stitch pattern corresponding to an end edge shown in FIG. 3 in the thread running representation, but with a not identical needle division;

FIG. 5 shows a thread running representation of the separable end edges in the step regions of the knitted parts shown in FIGS. 1 and 2;

FIG. 6 shows a stitch pattern of the end edge regions, which are similar to those shown in FIG. 5 in the thread running representation.

FIG. 1 shows a sweater front part 10 and FIG. 2 shows an associated sleeve part 11, both of which are produced on a two-bed flat knitting machine in the usual way with a fixed beginning 12 and an 1: 1 edge region 13. The sweater front part naturally has a firm fabric edge on its side edges 14, 15 which run obliquely outwards due to the increase in mesh and in the straight upper section 16 and 17 of the side edges. Such a firm fabric edge also results on the side edges 18 and 19 of the sleeve part 11, which increase in angle due to the increase in stitching. In contrast, with normal knitting there are no solid fabric edges on the horizontal step edges 20 achieved by diminishing in the transition region between the side edge sections 14/16 and 15/17 as well as in the stepped shoulder areas 21 and 22 and on the upper neck end 23 of the sweater front part. The sleeve part 11 occurs

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normally a non-rigid product edge on all the lower stages 24 of its upper edge in FIG. 2, including the upper end region 27. At all of these points, the separating edges shown in FIGS. 3 to 6 and described below also achieve a separable product edge. In FIGS. 1 and 2, the cut lines or ready-made lines 25 and 26 are also drawn in the stepped areas, along which the step areas are later removed immediately before or when the pullover is sewn together.

The separable end edge, with which the upper neck end 23 is provided in the sweater front part 10 and the upper end region 27 in the sleeve part 11, is shown in FIG. 3 in the thread running representation and in FIG. 4 in the stitch pattern. Sweater front part 10 and sleeve part 11 are produced on a conventional V-bed flat knitting machine with a front needle bed V and a rear needle bed R in a right / right binding. It could also be a different type of binding. In Figures 3 to 6, the needles of the two needle beds V and R are represented by lines 28 or points 29 in a known manner in each case in two rows, of which the lower row in the figures, the needles of the front needle bed V and the upper row, respectively Symbolize needles of the rear needle bed R. The stitch row I shown in FIG. 3, which corresponds to the stitch row Ml in FIG. 4, is the last regular right / right stitch row in the knitted edge regions 23 and 27. In this stitch row, the thread 30 is alternated by the needles of the front needle bed V and the Needles of the rear needle bed R are knitted into right and left stitches, so that right stitches 31 and left stitches 32 alternately lie side by side in the stitch pattern of FIG. During the subsequent passage of the machine slide, a further right / right row of stitches is produced and the stitches 33 formed by the needles of the rear needle bed R are reassigned to the needles of the front needle bed V. This transferring is indicated in FIG. 3 in the course II by arrows. In the stitch pattern of FIG. 4, the stitches 33 which are transferred to the right stitches 31 formed in the front needle bed V are clearly visible in the stitch row M2.

At least one right / left row of stitches adjoins the row of stitches as stitch rows III and M3, the stitches 34 of which are formed exclusively by the needles of the front needle bed V. This right / left stitch row can be followed by a second right / left stitch row, as shown in FIG. 4, where the stitch row M4 is such a second right / left stitch row. A row of stitches IV (FIG. 3) or M5 (FIG. 4) is then formed, in which stitches 35 are generated on the needles of the front needle bed V and loops 36 are produced on the needles of the rear needle bed R. In the subsequent sled run or in two successive sled runs, the handles 36 are then first thrown off the needles of the rear needle bed and then the stitches 35 are thrown off the needles of the front needle bed, as is symbolically indicated in FIG. 3 in rows IVa and IVb by arrows.

It is understood that the roles of the front and the rear needle carrier can be interchanged.

In the step sections 20 to 22 and 24 of the knitted fabrics 10 and 11 it is not possible to produce a separable, sturdy end edge over the entire knitted fabric width and, accordingly, there can be no final stitch drop across the entire knitted fabric width. In these areas, the formation of the separable end edges is carried out in accordance with the thread running representation according to FIG. 5 and the knitted image shown in FIG. 6 is generated. The row of stitches I (FIG. 5) and Ml (FIG. 6) shows the last unchanged right / right stitch row of the knitted fabric before the start of a knitting step provided on both the left and right knitting edge. In the next right / right stitch row II or M2 formed, stitches 33 are transferred from the rear needle bed R to the right stitches 31 of the front needle bed across the width of the desired edge steps. In Figure 5 this is again indicated by arrows. The knitted stitches 33 are clearly visible in the step areas on both sides of the knitted fabric in the knitted fabric of FIG. The number of needles shown in FIG. 5 in the step area and thus the step width does not match the number of needles and thus step width shown in FIG. 6, but this does not impair understanding of the procedure. In the non-graded central region 39, the right / right, ie in the previously selected type of weave, continues to be knitted during the production of the separable step edges.

In the following stitch row III, a right / left stitch row is formed over the step regions with the needles of the front needle bed V. Two (or more) right / left courses can also follow one another, as shown in FIG. 6 with courses M3 and M4. Subsequent to the right 'left stitches, stitches IV and stitches 36 are then formed in the stitches IV in the marginal step regions on the needles of the front needle bed V and on needles of the rear needle bed R. Catch handles 36 are produced on all needles of the edge step area, with the exception of the inner corner needles 37 and 38 of the rear needle bed R. These two needles 37 and 38 of the rear needle bed R. which are located on the edge of the unchanged right / right center region 39 (FIG. 5) of the knitted fabric thus remain free and initially do not take up any thread.

In the subsequent carriage passage, the tucking handles 36 of the rear needle bed R and the stitches 35 of the front needle bed V are then thrown off in both edge step regions, as has already been described in connection with FIGS. 3 and 4 and in FIG. 3 by arrows in the stitch rows shown there IVa and IVb is indicated. Then continue knitting with right / right courses in the untiered middle section 39. In the first stitch row V, tuck loops 40 and 41 are formed on the “stepped corner needles” 37 and 38 of the rear needle bed R, in the subsequent stitch row 6 stitches again. In Figure 6, the step corner needles 37 and 38 are indicated in the course M5 and the tuck loops 40 and 41 formed on these needles are designated in the course M6. The needle arrangement is selected so that a transferring needle is available in the selected transfer direction for each transferring needle. An edge needle thus fails as the transferring needle, otherwise drop stitches would arise. Accordingly, an edge needle cannot be a handle-forming needle, because the dropped handle thread piece would protrude and could be pulled out.

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3 sheets of drawings

Claims (5)

662 137 1.Method for producing separable end edges on knitted fabrics on a knitting machine with two needle carriers fitted with latch needles, the stitches held by the needles of the first needle carrier first being transferred to the stitches of the needles of the second needle carrier and then at least with needles of the second needle carrier a right / left row of stitches is worked, characterized in that subsequently at least one right / right row (IV) with tuck handles (36) on the first and stitches (35) on the second needle carrier in the end edge area (20-24, 27) (R, V) are formed before the handles (36) of the first and the stitches (35) of the second needle carrier (V) are thrown off in the end edge region (20-24, 27). 2. The method according to claim 1, characterized in that the handles (36) of the first and the stitches (35) of the second needle carrier (V) are successively thrown off. 2nd PATENT CLAIMS 3. The method according to claim 1 or 2, characterized in that the needles of the first needle carrier (R) forming the handles (36) are previously kept out of work during the formation of at least one right / left stitch row on the second needle carrier (V). 4. The method according to any one of claims 1 to 3 in the production of stepped end edges, characterized in that in the corners of the step areas (for example 20) in the formation of the right / right rows (IV) with catch handles (36) the last needle ( 37, 38) of the first needle carrier (R), from which a stitch (33) has previously been transferred to the second needle carrier (V), is kept out of work until the stepped edge stitches (35) and handles (36) are dropped and the right / right row (IV) has a thread float there. 5. The method according to claim 4, characterized in that after throwing off the handles (36) and stitches (35) in the final edge step (eg 20) when continuing to knit on the step corner needle (37, 38) in the first needle carrier (R) Tuck loops (40) and one stitch in the following course (VI).